Yahoo is expanding its Facebook “frictionless sharing” capabilities, letting users of its entertainment websites automatically broadcast their reading habits across Facebook’s social network.

Yahoo websites including Yahoo Movies, Yahoo TV and omg! – Yahoo’s celebrity gossip site – will now offer the type of Facebook integration that Yahoo introduced for Yahoo News earlier this year.

If you opt-in and choose to use the social sharing feature, every time you read an article on one of those websites, the name of the article and a link is instantly beamed into the newsfeed of all your Facebook friends.

According to Yahoo, more than 12 million people have chosen to use the social sharing product since it became available for Yahoo News articles in September, and it has led to a 300 percent increase in visits to Yahoo News from Facebook users.

Yahoo is also extending social sharing to Yahoo News in several markets outside the U.S., bringing to 26 the total number of Yahoo sites that offer social sharing.