It seems Yahoo is trying everything they can to keep themselves from being acquired by Microsoft, or at least put pressure on Microsoft to up to the bounty so to say. In the past few weeks, AOL/Time Warner, Google and NewsCorp have entered into the picture. Here is a brief over-view of what is happening with each company. More detailed information can be found here via Todd Bishop’s Microsoft Blog. Yahoo: Trying to avoid or sweeten Microsoft’s original offer. Testing an advertising partnership with Google. Reportedly getting close to a deal with Time Warner’s AOL unit to combine their Internet…