1- The FriendFeed gadget -which u can see on the top of the side bar - is a great tool to interact with social media services websites.
2- Google Reader shared items: As i won't post regularly many posts :D , it will be nice to follow my shared items on Google Reader. I consider myself a good Google Reader user , i have many feeds i follow in technical and non-technical stuff. I consider it as an extension to this blog.
The posts varies from technical news , tutorials , Linux tutorials and news, anything...
Go there http://www.google.com/reader/shared/16481932446791036575 and check the posts , I recommend you to read the posts by Gustavo Duarte ( specially my colleagues :D) , it almost covers the Microprocessors course we had with many specific details.