Microsoft announced that it <A HREF="http://www.eweek.com/article2/0,1759,1935629,00.asp?kc=EWRSS03119TX1K0000594">has purchased Onfolio,</A> a maker of online information and content sharing tools, whose technology the software giant has already integrated into the latest version of its browser-based tool bar application. Based on the acquisition, terms of which were not immediately released, Microsoft said that it is permanently adding Onfolio's tools into its Windows Live Toolbar, a beta version of which was released earlier in the week of March 5.