Google has a great web page on how to add +1 buttons for your website. If you’re already using Google+ you really should consider adding these to your website, too.
Facebook changed things up a bit in the past few weeks. You now don’t have to ‘like’ something to be able to comment on a page. The subscribe button allows you to be part of a page’s conversation without being previously connected to the page. John Haydon has a great run down on how the changes and specifically the subscribe button helps nonprofits.
What are your thoughts on the changes? Please feel free to share them in the comments box below.