I have just noticed a few entries in referrers log at howforge.com. They seems to be a kind of search engine. There are only 3 identical entries from AOL, IOL, and MyWebSearch. Let me explain more detail about them.

1. AOL has a very unique URL pattern which I don’t think other search engine will never have something like this. Actually, it contains the word "aolcom".
2. IOL, instead, uses CGI standard and it doesn’t utilize feature of aliasing like Google do. In contrast, IOL add "/cgi-bin" to the URL.
3. MyWebSearch uses the most unique and lowest technology comparing to those above. This search engine is just an overlay of Ask Jeeves, ,  and LookSmart. It is written in JSP and there is the word "/jsp" in the URL.

In addition, I also added Ask Jeeves and LookSmart for completeness. Anyway, I never get any incoming referrers from these search engines.

Technorati Tags: Development, Announcement, English, IT, Drupal, Search Engine, Product, Search Keywords Module, Tips and Tricks, AOL, IOL, MyWebSearch, Ask Jeeves, Yaoo, LookSmart,