The Difference Between target=_blank and target=blank

What is the difference between target=_blank and target=blank? It’s a question that seems to crop up every now and then. At first, they both appear to do the same thing, open a link in a new tab (or window). However, omitting that little underscore makes an important difference.

Drupal 7: first impressions

Last week Drupal 7 was officially released, there's already been a number of beta and release candidates, but this is the real deal. I thought I should take a quick look and see whether it has been worth all the anticipation. So far I am really impressed.