No. 33: eBay

After years of making acquisitions such as Skype to add new services, eBay took its basic auction site back into the shop in 2007 for the biggest overhaul since it started selling Beanie Babies in 1995. Now, shoppers can search more precisely for exactly what they want, and see the results in photos using a window-shopping metaphor. So far, this hasn’t eased concerns about rising competition from Amazon.com—but it’s a start.

Company Info on EBAY