Someone wrote a post on the correct grammar for Social Media, such as when or if to use “ReTweet” or “retweet”. And Hubspot released findings that said the more you blog, the more traffic there will be (but I’m not sure that’s what we really want, is it?).
See some stats from Hubspot below:

Finally, students can now buy used textbooks on the Kindle for a large discount.

According to Gizmodo
Students can customize their textbook rental period (anywhere from 30 to 360 days) and from the looks of it, a semester-long rental is significantly cheaper than buying the book.
…. Amazon says it’ll have “tens of thousands of textbooks” available for renting, all of which will use Kindle features like Whispersync, highlights, notes and the ability to use it on any Kindle app (iPhone, Android, etc.).