One of the most surprising things about Microsoft's bid for Yahoo is that if successful it will make Microsoft one of the two or three largest users of open source software in the world. Google is certainly the largest. The National Security Agency may or may not be second (only the spooks know for sure), but if it is then by my estimate that would make Yahoo the third.

Microsoft’s proposed $45 billion buy of Yahoo would give the Redmond, Wash company control over a top open source e-mail company, open source projects and an open source infrastructure. On September 17 of 2007, Yahoo bought Zimbra for $350 million. Yahoo’s infrastructure is built on BSD. Yahoo has released a myriad of software to the open source community and even sponsors some open source projects. So this deal would put Microsoft directly into the open source software business.

According to avid Yahoo'er, Amanda Kerik, Yahoo seems to have developed a policy of censoring answers in their "Yahoo! Answers" service, if that answer contains a suggestion to use Open Source alternatives to Microsoft software.

I once took Jeremy Zawodny, technical director at Yahoo!, to task for not contributing enough back to open source. Today, Zawodny made it clear that openness and open source are in Yahoo!'s DNA. It is a trend that started long ago, Zawodny writes, and will only accelerate over time

Google Inc. Chief Executive Eric Schmidt called Yahoo Inc. CEO Jerry Yang to offer his company's help in any effort to thwart Microsoft Corp.'s unsolicited $44.6 billion bid for Yahoo, say people familiar with the matter.

Today Yahoo! officially introduced their "open strategy" platform, Y!OS. The Yahoo! Open Strategy platform consists of three development components, the Yahoo! Application Platform, the Yahoo! Social Platform, and the Yahoo! Query Language.

GNU/Linux Web sites are being starved a bit now that Yahoo! removes a section which represents its roots; Hotmail demotes PDF and KIN is a disaster that cannot compete against Linux

JavaScript programmers, rejoice! It's been a good week for open source from big companies. Earlier this week Yahoo! released its Traffic Server it acquired from Inktomi, and now Google has unleashed Closure Tools. These are part of the toolset that Google uses to create JavaScript-heavy applications like Google Docs, Gmail, and Google Maps.

Pidgin is a popular open source client for yahoo messenger and other IM protocols. Yahoo recently updated their client and older versions of pidgin will be unable to login to yahoo. Learn how to do a work around.