Social Source Commons

Dopplr lets you share your future travel plans privately with friends and colleagues.

FeedBurner is the leading provider of media distribution and audience engagement services for blogs and RSS feeds.

a project to build a collaboration platform from the lowest common denominator communication tools, considering as highest priorities the needs of workers of humanitarian aid, international health and disaster response.

Hosted web/email/usenet discussion groups.

Independent publishing marketplace for digital do-it-yourselfers. You can publish, sell and buy books, music, comics, photographs, movies, etc. For example, you can upload a PDF and sell it in book form at whatever price you specify.

Excellent free web-based tool to coordinate meetings between many people without wading through emails.

MozyPro is a business-quality, full-service backup solution.

Free/cheap Internet telephony and handy IM tool.

Twitter is a global community of friends and strangers answering one simple question: What are you doing? Answer on your phone, IM, or on the web.

an easy way to find when everyone is available for a meeting or event