“Press This” is a bookmarklet you can add to your Internet Explorer favorites or Firefox bookmarks (a bookmarklet is a small computer program that can be run via a bookmark or favorite).
What makes Press This so handy is that you can highlight some text on any random web page, then click the Press This bookmarklet and a window will pop up, containing all the highlighted text from the original page in a WordPress “new post” window. You can then add your own text (if desired) and click the “Post” button to quickly post the text to your blog. For example, most of the posts currently on the front page were added via Press This (look for posts that say “via [some link]” at the end of the post. If you like, you can also add pictures and videos to your Press This posts as well.
To add Press This functionality to your browser, just go to your WordPress dashboard and click the “Tools” link in the sidebar: you’ll find complete (simple) instructions there.
Once you start using Press This, you’ll see how handy it is. It’s almost as fast as Facebook’s “Share Link” function, and it’ll save you all kinds of time and hassle with cutting and pasting!
Note: there is a bug with Press This in WordPress 2.7.1. If you follow the instructions on your blog and get an error message when using Press This, let me know, and I’ll send you a link to a fix.