Google to top Facebook?

Google shares increased $15.39 to close at $749.38 on Monday, reports Richard Waters of Financial Times. Since July, Google has added 30%, ($75 billion) to its stock market value.

Read: Google buys Frommer’s; cuts Motorola staff

Recently, Google has been making headlines as it competes with other companies, namely Facebook, for ad revenue. This rally may prove investors have grown less worried that the lower prices charged for mobile advertising will eat into Google’s core business, or that Facebook will draw users away, says Mark Mahaney, an internet analyst at Citigroup.

Read: Google buys Wildfire to boost ad revenue

Google’s push into online display advertising, starting with its acquisition of DoubleClick in 2008, has also been paying dividends, writes Waters. eMarketer, an internet analysis firm, last week predicted that Google will top Facebook to become the largest digital display company this year, he adds.

Read: Google visits the Arctic…on a tricycle