Ranking.com A free metrics resource providing data on the top 750,000 sites on the Internet. Users can search by domain, category, and refine the lists by links, UVs and pages views. Webmasters are able to modify their listing at no charge with no hidden fees. It's a totally free resource for webmasters to determine overall web popularity. A nice alternative to Alexa.com.
Wink.com A social search engine that provides relevant and interesting results as found by people. Tag pages you like, create or share collections about any topic, and re-rank or customize search results.
ISEDB.com ISEDB.com, the Internet Search Engine Database, provides a guide to search engines and directories along with search engine resources, a directory of top and major Internet search engines, Internet search engines articles, and search engine news.
Searchenginez .com Over 100 pages of categorized search forms and tips, covering many categories and specializing in books, translations & finding people using the web.
AllRefer.com Browse articles in all areas of topics within Earth & Environment, History, Literature & Arts, Health & Medicine,People, Philosophy & Religion, Places, Plants & Animals, Science & Technology, Social Science, Law,Sports, Everyday Life, and more.
Alexa.com An unparalleled source for web information. If you haven't visited the site or downloaded the toolbar, do it now. Find ranking and registration information on any web site and search the Web's largest index of more than 3.5 billion pages.
ISEDN.org (Independent Search Engine & Directory Network) was created in June, 2005 to offset the growing monopolization of the search industry. Over 145 search engines and web directories have joined the network to date.
Whonu.com A unique online search/discovery tool that taps into the power of multiple search engines. Contains a number of search innovations and tools with a slick interface.
Search Engine Central A directory of search engines broken down by world region, topic and the world's best engines.
reddit.com A major social networking site - a source for what's new and popular online. Vote on existing links or submit your own.
PPC-Directory Has over 200 pay per click search engine listings, organized alphabetically by category and by topic. The site also offers some reviews, useful tools and a discussion forum. The site lacks detailed info but is a useful starting point for those interested in PPC advertising. Best used in conjunction with sites like CPC-List.com.