+1
1. A Google button that allows you to let others know that you recommend a web page. Others +1's can be viewed by looking at their Google+ profile. Below is an example of what the Google +1 looks like. For all other pages on Computer Hope, you can find a Google +1 share button by clicking the share page icon on the left-hand side bar.
2. Internet shorthand for agreeing with someone in chat or on a forum, or bumping a post that is good.
Also see: Google, Google+, Internet definitions