ScraperWiki is a powerful cloud-based service that lets you scrape data from online documents and websites.
Ushahidi is a platform for crowdsourcing information. Members of the public submit reports that are geo-located and then put on a map. The platform is used in disaster relief, election monitoring and just about any other situation where people need to learn things from one another quickly and concisely. Out of the box, Ushahidi allows people to submit reports via the web, mobile applications, Twitter, Facebook with support for a few SMS APIs as well.