Creative Commons Search
Powered by Nutch, it searches for content which can be re-used (for some uses) without having to pay or ask permission.
SearchIRC
Search Internet Relay Chat rooms and networks.
Thagoo
Searches millions of user's categorized favorite links using the most popular social bookmark sites, using classification by tags.
360view4u
Searches RSS feeds: news articles, press releases, news archives, and blogs, using the Google XML service.
ZoomInfo
A business information search engine, providing company search, people search and job search. It constructs profiles on people and companies, drawn from the Web, or created by individuals and companies for themselves.
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