Results matching “Web search engine” from Ye Olde Rad Blog III

Created a dedicated 'Guides' page. See here » Radified Guides. Been meaning to do that for .. eons. This will allow me to off-load the guides listed here on the home-page, so I can clean it up.

I indented & right-aligned every other link .. to make them easier to read. What do you think? When the links were all lined-up together & left-aligned, they seemed too .. similar.

Eventually I'd like to include a representative graphic for each guide/link. But for now, I just wanted to create a page that contains a repository of the links to all our guides.

On a related note, I've been looking more deeply into MODx, the Content Management System (CMS). They are fixin' to release a new version (complete-rewrite, from the ground up, based on PHP5) .. called » REVOLUTION. (Current version is called » EVOLUTION.)

Drupal would be cool, but it's way too sophisticated for what I need. I don't want/need a PhD in CMS's. Here's a MODx site, for example. (I used to live in Lancaster, PA .. the heart of Amish country. Nice people there.)

I'd like to become intimately familiar with a good CMS .. as another skill to add to my digital toolkit. Only way to do that is » use one daily.

The good people at MODx claim a 'Release Candidate' version of REVOLUTION will be coming » "Winter 2009" (.. which is now). [ Notice how the words 'Summer 2009' have been lined-out. ] UPDATE » They just changed the RC date to "Spring 2010". Hmmm.

The MODx site is running REVOLUTION. I'm in no hurry, tho. Rather make a good decision than a hasty one.

Happy Halloween. I modified the method of placing the graphics in the header found at the top of the home page .. up where it says » RADIFIED | Nuclear Grade Technolust. There I implemented a technique known as » CSS Image Replacement, of which there exist many variations, each with its own set of pro's & con's.

The dividing-line among web designers seems to be whether or not to use a non-semantic span tag with CSS positioning, which involves a more complicated technique .. but leaves visible TEXT in place for visitors who surf the Web with STYLES turned off (primarily those using mobile devices).

I used a simpler IR technique, by changing the images you see displayed there .. from foreground images to background images.

This allowed me to replace the foreground images (contained in those heading elements) with TEXT .. which I then indented (way to your left), so it can't be seen. By moving the TEXT out of the way, this technique reveals the graphics (.. which look prettier than standard heading-text).

The advantage however, is » devices that don't render styles (such as screen readers and mobile devices) will now see a TEXT heading and tag-line displayed there, where before there existed only images. Search engines also gives more weight to TEXT than images.

Most Rad visitors will never notice the difference .. seeing most who frequent the site (fellow technolusters) browse with both images and CSS turned ON. But I'm gradually filling my webmaster toolkit with increasingly sophisticated techniques. (Learning by doing.)

After all the pages are styled however, and the markup is coded semantically, there's still no substitute for insightful content .. that is well written (.. and hopefully seasoned with a dash of personality).

This has always been the most difficult challenge .. because a stylish suit does not a charming pig make. And the ugliest person can say the profoundest things, and possess scintillating ideas. So it would seem that content trumps style .. no matter the venue (.. except maybe for those who focus on style).

"Hey Rad Man!" began an email I received last week. "I'll pay $100 for a link on your Downloads page." Of course, there's no way of knowing if such offers are legit .. until the cash arrives.

 I've researched Search Engine Optimization (SEO) enough to know I don't much care for it.

Programming I enjoy, but SEO contains a seemingly endless amount of info to digest, some of which conflicts from site to site.

And the suggested techniques are often time-consuming, with dubious results that demand the patience of a saint before you start to see results. Rather focus my energies on generating original content.

Moreover, some of the techniques used to 'optimize' web pages (for higher search engine rankings) seem manipulative, if not downright dishonest. Many of the SEO sites I've visited have a 'slimy' feel to them » detailing how to trick search engines into ranking your pages higher.

I learned that links from 'ranked' pages will (in turn) yield greater 'importance' to the pages that those links aim at (point to). This is (I assume) what this person had in mind when she contacted me.

The email seemed both professional and specific. (Not slimy.) The girl was clear about what she wanted. And best of all, her proposal could be implemented minutes. (Simple.)

The problem was .. that the page they wanted a link on was created back when I knew squat about web standards (XHTML & CSS). The underlying mark-up (code) was a rat's nest of deprecated tags and coding no-no's.

Downright embarrassing .. from a webmaster's point-of-view. Miracle the page would render at all (.. even in 'quirks' mode).

The SICP course, hailed by many as the single-best introduction to Computer Science, focuses on » methods to 'control complexity.'

The MIT professors who designed the course (Abelson & Sussman) both come from a background in Electrical Engineering, which obviously influenced their conceptualization of the course.

In other words, it seems they applied the techniques associated with Computer Science to a conceptual framework designed to teach Electrical Engineering (.. a familiar paradigm).

The course focuses on solving the problems associated with building "very large" (complex) computer programs by expounding on the following 2-step process:

1. Simple things (such as numbers, symbols, $variables, data, procedures) are combined to build complex things.
   
   
2. These complex things (typically data & procedures) are then wrapped in a "black-box" in order to 'simplify' them .. so they can be used as components in building even-more complex things.

The technique of 'abstracting' complex things so they can be used as components in building something even more-complex is termed » "Black-Box Abstraction."

Consider how a microwave oven (or fridge or stove) is used as a component in building a kitchen (which is part of a house, which is part of a neighborhood, which is part of a city, which is .. part of something ever more-complex).

Notice how the electronics (inside the microwave) are hidden from view. All you know is » cold-food in, hot-food out. (Simple.) That's the principle behind 'abstraction' » hiding complexity.

Last month I mentioned a quest to learn the Unix shell .. specifically » bash (the Bourne Again SHell). Almost done. Currently ~80% complete .. enough to feel reasonably confident at a terminal.

The 'shell' is simply a program that lets you interact with the operating system (actually the kernel, to be more precise) ..

.. by taking your (text-based) commands and passing them on to the kernel. In my case, this kernel happens to be » Linux (which is but one variant of Unix).

The term 'shell' comes from the notion that this software acts like a 'layer' that sits between you and the operating system .. similar to the way an egg-shell sits between you and your hard-boiled breakfast.

The shell can be intimidating, cuz it uses a (text-based) command-line interface (CLI). No intuitive GUI to help you along. You either know the commands or you don't.

Didn't take me long to realize the CLI was where Linux's true power resides. When we upgraded the site, for example, to a Virtual Private Server, the support-techs who helped me with the move all used the command-line to work their mojo.

Most Linux distros do indeed come with an excellent GUI (usually either KDE or Gnome). But (but!) the Rad VPS does not. Which is why it became necessary to learn the Unix shell. (Something I tried to avoid.)

The Rad VPS is based on CentOS (Community ENTerprise Operating System), an off-shoot of Red Hat, which is probably the most popular of all enterprise Linux distros (.. and now a new member of the S&P 500, a development you may find telling).

GUIs (such as KDE or Gnome) require lots of memory/RAM. My laptop, for example, has 2-gigs, but the Rad VPS comes with an allotment of only 512-MB (.. upgraded from 384 just today).

With that limited amount, I need to run not only all the standard web applications .. such as Apache (web server), MySQL (database), Perl (scripting language), etc. but also cPanel/WHM.

So there's not much RAM left to run a GUI. [ Don't think I didn't inquire about installing a GUI. =) ]

Bottom line » if you wanna administer your own VPS, you need to learn the Shell. So that's what I'm doing. (Of course, there have been distractions, making progress uneven.)

"Computer Science is not a science," proclaims a professor at MIT, drawing an X over the word. He's introducing an introductory course on Programming called » 'Structure & Interpretation of Computer Programs' .. aka SICP. (Watch the video yourself » HERE.)

Less than a minute into the lecture and already I'm curious. "If it's not a science," I wonder, "then...??"

"It might be engineering," he continues, as if reading my mind, "Or it might be art. We'll actually see that computer so-called 'science' actually has a lot in common with magic."

I smile at this point, having gained insight into the graphic displayed on the book's cover, understanding why some refer to it as » The Wizard Book.

Then he draws an X over the word 'Computer' and says, "It's not really about computers either." (Okay, now I'm really interested.)

"The reason we think Computer Science is about computers," he continues, "is for the same reason the ancient Egyptians thought geometry was about surveying instruments ..

.. » because, when a particular field is just getting started, and you don't really understand it very well, it's easy to confuse what you're doing with the tools you use."

So-called Computer Science (he explains) is really about formalizing intuitions & knowledge about » Process (a word he writes on the board .. he's a lefty, btw). He then clarifies himself by saying, "How to *do* things."

Sold the Rad-mobile today. I've driven that car every day for 22 years. (When I find something I like, I stick with it.) Bought it when I was living in Pennsylvania (1986) when the car was 2 years old ($32K). Previously owned by a doctor's wife.

Last week I noticed the engine sagging slighty. Took me a few days to figure out why. A part called the motor mount bracket had broken ($450, just for the part).

My buddy, Big Al, stopped over this morning to take a look. He's an ex crew chief for race cars. Builds race cars for a living. He said the bracket would not be easy to replace.

We'd have to do what is called a partial engine-drop. He also said not to drive the car, cuz the dang engine could fall out.

So I placed an ad on Craig's List. Within the hour, phone rang. Guy named Alex asked how much I thought the car was worth. I really had no idea, given its condition (undriveable).

But I threw out a number I'd be happy with. Alex said, "If you're willing to sell for that, I'll come over right now and buy it sight unseen."

Well, he did. Him and his buddy. Car left a few hours ago on a flatbed. It all went so very fast. (Made me dizzy.) One minute Big Al was ready to fix the car for me; the next (it seems), it was gone.

Woohoo! I worked some Apache mojo today to "alias" the file-name of this home page (index2.html) to » index.rad.

That's so cool! Thanks to Nigel (Ghost Developer from New Zealand) for holding my hand. Here's the code I used to work this magic (added to .htaccess file):

RewriteEngine on
RewriteRule ^index.rad index2.html

Thus far, this technique has only been applied to the home page (starting with a baby-step). But in the future, I'd like to expand its use .. to 'radify' other key pages.

I transferred 2 months worth of daily entries (Dec 2007 + Jan 2008) to individual blog entries, using (older) Movable Type v3.35, since that was the version I was using when those entries were made.

It's much easier to reference (via linkage) a particular event .. such as the upgrade to YaBB v2.2 (which did not go well) .. or the Bug's 3rd birthday (which did) .. when I have a daily entry to link to (instead of monthly).

Back in December & January is when I was researching VPS servers, and didn't have time to convert the daily entries to blog entries...

.. after Lunarpages (you might recall) booted us off the server (end of November), and I was worried they were gonna turn off the lights and pull our plug.

But now we're all caught up. (Took me all day, tho. Tedious maximus.) Only the last 2 days don't have blog entries.

Blog entries are also better for search engines, since each page can indexed individually (with its own title).