I just came across a blog post on ReveNews, found here, that reported on a recent announcement from Microsoft that they are acquiring Jellyfish.com for an undisclosed sum. Jellyfish is a comparative shopping website based out of Madison Wisconsin. They’ve done some interesting things with affiliate marketing and ReveNews goes into some of it on their site. The amazing take-away for me is that somebody like Microsoft would be interested in making small acquisitions in the online advertising space in their effort to augment their Live Search functionality and user experience. I honestly don’t know enough about this to comment on exactly how it will be helpful to Microsoft’s Live Search but I am very curious to see what other large players will start acquiring similar integrated marketing companies over the coming months to strengthen their market positions.