Twitter has launched a Follow button, enabling users to subscribe to the Twitter feeds of companies and individuals directly from their websites with a single click. Twitter is launching the button over 50 high profile websites, including IMDb, MTV.com, Lady Gaga’s site, Jennifer Lopez’s site, and others. Various social websites are trying to expand their reach by launching individual buttons....

Facebook has always being criticized for being too open. And, why wouldn’t it, when it has a founder and CEO evangelises the openness of the internet. But, the social network has evolved with time and in the recent months they have launched features and products which facilitate private interaction. The major changes came in the form of Messages and new Groups. Now, Facebook is taking a step...