AddThis, the most popular tool for bookmarking on websites, has recently been acquired by the leading widget network Clearspring. Separately the companies were doing quite well, together the two pave the way to create a flawlessly integrated system for sharing content.

As is common with many acquistions, this forces any other similar services to step their game up a bit. Although we do not use AddThis currently on SDA, its now crossing our minds. It all depends where the platforms decide to take this new collaboration and what direction ShareThis turns with the new beta.