The Benefits of Blog Roundups

I'm considering do a regular round up of my blog posts but wasn't precisely sure of the benefits.

Harsh Agrawal at the Shout Me Loud blog does an excellent job of explaining the Importance of Roundup of Blog Posts.

I'm going to look into it a bit more thanks to this wonderful advice.

If you have a blog or a newsletter, do you do a regular roundup of your posts? If so, how often and what format do you use?

I'm linking at these parties.