games/entertainment/virtual goods (zynga,scvngr,foursquare?), retail (actually selling things) I dont think the taxonomy is very robust. When you talk strategy

games/entertainment/virtual goods (zynga,scvngr,foursquare?), retail (actually selling things) I dont think the taxonomy is very robust. When you talk strategy what do you mean? Ads are a strategy to monetize, but direct marketplace describes the business. Content is more like published (blogs) vs. user generated content (facebook, twitter) monetization strategy is different than maybe the customer acquisition strategy. If you pull all mention of ads then I think the taxonomy works better. Craigslist to me is more like a direct marketplace