Social networking news site Mashable and Yahoo! Search have extended the deadline for the BOSS Mashable Challenge. This contest, now running through October 5th, will award prizes to developers who create the best mashups with the Yahoo BOSS API. As many readers will recall from our earlier coverage on BOSS, the BOSS (Build Your Own Search Service) platform lets developers build their own full-blown custom search applications on Yahoo’s index of the Internet, the same infrastructure that underlies Yahoo Search.
As far as web search tools go, few have generated as much hype as Wolfram Alpha. The service, which bills itself as a "computational knowledge engine," differs from search engines such as Google, in that it does not return lists of web pages. Rather, Wolfram Alpha attempts to calculate answers to user queries. For example, a query of "los angeles county median household income" will return the result "$43,518."