Citi maintains Buy on Facebook (NASDAQ: FB).

Analyst Mark may says Facebook moves to the number 3 slot from number 1 in the internet ranking list primarily on other names being moved around along with concerns about how investors will react to margin pressure from heightened expense growth and from teh mix shift to video advertising.

For an analyst ratings summary and ratings history on Facebook click here. For more ratings news on Facebook click here.

Shares of Facebook closed at $168.10 yesterday.