How do I add a "Blogs I Follow" widget to a Wordpress.org site?

Hi,

I am in the process of moving a site from Wordpress.com to being self-hosted.

One thing I liked about Wordpress.com was my ability to follow other blogs and have people follow my blog. Is this still possible with self-hosted Wordpress.org?

Also, on Wordpress.com there is a widget called "Blogs I Follow" - is there some way to achieve the same thing with Wordpress.org?

Thanks for any pointers!