The Plus in Google Plus? It’s Mostly for Google - NYTimes.com

From a review of the potential minuses of Google Plus

"“If you want Google search, they’re going to shove Google Plus at you pretty hard, so the consumer’s forced to take the product they don’t want to get the product they want,” said Tim Wu, a professor at Columbia Law School who studies antitrust law and the Internet.
“That raises big questions under antitrust law,” he said. “It reminds me a little bit of Microsoft when Microsoft was fearing Netscape and decided to bend over backward and do anything possible to tie [Internet] Explorer to their operating system.”
Google declined to comment on this issue."

The Plus in Google Plus? It’s Mostly for Google - NYTimes.com