Free online biodiversity encyclopedia, with hundreds of thousands of new images and specimen data as to build a web page for each of the 1.9 million recognized species.
is the file extension source. Here you'll find a collection of file extensions; many linked to the programs that created the files. This is the FILExt home page.
explains how search engines find and rank web pages, with an emphasis on what webmasters can do to improve their search engine rankings by properly submitting, using better page design, HTML meta tags, and other tips.