Google hit by organic growth problem?

Google pulled in $5.37 billion in revenues last quarter, and $1.25 billion in net profits (nearly ten times what Yahoo made last quarter). Yet behind the consistently amazing financial performance, a few chinks are beginning to appear in Google's armor. The biggest one may be the increasing gap between its organic revenue growth and its total revenue growth.

Google does not break out its organic revenue numbers (the revenue from its core businesses, not including contributions from recent acquisitions, investments, interest,or foreign exchange fluctuations). But in a note put out on Friday, Citi analyst Mark Mahaney gave his estimates of Google's organic revenue growth. He warns, "We have seen steady and material deceleration in GOOG's organic revenue growth," and he expects that trend to continue in the third quarter as well. (Even so, he still reiterates his buy rating on the stock).