For years now, Facebook and Twitter have had their respective “Like” and “Favorite” buttons. They’re simple, straightforward ways to show appreciation for a status update or a tweet without verbally replying (and Google, too, has its +1 button.). They’re popular, too: Facebook processes nearly three billion “Likes” on a daily basis. Now, on Monday, according to a report from The Next Web, Twitter is tweaking its “Favorite” formula, carrying out a test with some users who are seeing “Star” or “Like” options on tweets instead of the original “Favorite” button. Read the full story at All Things D.