The Inside Source is eBay's latest announcement. The searching, buying, and selling habits of its 88 million active users have added up to an enormous dataset, one that could have easily been hoarded and sold to marketers, brands, and others with a vested interest in online retail and trends. Although eBay isn't releasing raw stats into the wild, it is publishing editorial content and news on trends as well as a tag cloud of most popular searches right now. Coming soon are multimedia galleries a