Image via CrunchBaseIt's so much more fun blogging from my Powerbook. Why? Because I have Zemanta installed on it.
Zemanta is a great plugin that helps you include links to relevant images, tags and online articles about the subjects you're blogging about. I always find creative images to add to posts when I use this machine!
Also, the best thing I've ever added to my blog was the Disqus system for collecting comments. It has a lot of nify features you should check out.
For example, I get an email if someone replies to one of my posts. I can reply to that email to post a response to the comment! Also, it can tweet your reply and you can authenticate to Disqus using either a Disqus, Twitter or FaceBook account!