On Thursday's Market Foolery, host Chris Hill and Motley Fool Funds analyst Tim Hanson give a thumbs up to the latest numbers from Facebook (NASDAQ:FB); but they aren't surprised.

Facebook's second-quarter profit more than doubled, overall revenue was up 61%, and shares are up 5%. To Tim, Facebook is impressive. Looking at the social site's advertising, Tim explains that campaigns small and large have overall been successful. Chris looks at what investors can easily miss. Some investors may not want to buy into Facebook because they don't use it, but advertising is what Facebook is about. 

When looking at must buys, Chris and Tim look at the "cool" factor that Facebook is losing; yet they continue to innovate. Tim looks at the duopoly between Google and Facebook in online advertising, and he sees more possibilities in the online advertising space. Then, Chris and Tim look at how large the company has become, and the price of the stock.