Social Source Commons

Search engine where users vote on the top results for a given search.

Message board search engine

Search engine.

Search engine/calendar for non-profit events (Charities, Communities, Cities, Universities, Arts, Theater, Schools and other organizations) all over the nation, and provides an exclusive list of events in your area.

Exalead presents Wikipedia search, blog and forum search

GoodSearch is a search engine which donates 50-percent of its revenue to the charities and schools designated by its users.

With Google Insights for Search, you can compare search volume patterns across specific regions, categories, and time frames.

Nonprofit search engine and database.

Summarizes the top results of a Google search in minutes.

KeywordPad is a Windows software for managing large keyword lists used in your Internet marketing campaigns (organic search engine optimization, PPC advertisement campaigns, etc). Use it to clean, modify and multiply your keyword lists.

The blogroll generated at nonprofitblogxechange plus the old nonprofit technology Search-O-Rama to bring you MANSEO -- Mother of All Nonprofit Search Engines Optimized.

Business news search engine.

Discussion forum search engine.

Quintura is a search engine based on a visual search engine technology and makes use of Yahoo’s index.

Search engine launched by Google to test new user interfaces for search results.

Social Actions is an open source database of actions people can take on any issue. The actions in its database are aggregated from across the social web and include everything from volunteer opportunities to micro credit loans.

Social Actions encourages social tech programmers to develop web applications that intelligently distribute the actions in its database across the websites, social networks, and mobile phones that millions of people use every day. The overarching goal of Social Actions' work is to make the web more action-oriented, or in other words, to make it easier for people to find and share opportunities to make a difference.

Video search engine.

Cross-platform tag search engine

Website Grader is a free SEO tool that provides an SEO score for your website with custom search engine optimization and marketing advice for your website.

Wordtracker helps website owners and search engine marketers identify keywords and phrases that are relevant to their or their client's business and most likely to be used as queries by search engine visitors.