Well, the sites and tutorials were made by users and subited there. They seem to all be checked out befor putting them into the section.
and example being.. you dont search with a "Search" bar... you just click the section and it brings everything submited.
There is realy no searching involved and they all have descriptions.
also if there was a search bar, if you searched for "Hello" it wouldent bring up something like "Hello, i'm blah blah, welcome to my site!" instead it would be like "How to make marquee text in HTML we will try with the word hello"
anyway you get the point.