How to avoid Wordpress spamming?
 

Hi,

I have a blog that is managed by WordPress on my domain site.
Every day i get like 10 "comments" to approve but I do not think even one is relevant to the post.
Only weird names, email addresses, and crazy list of keywords...

How can we stop people to use the blog as a "link farm" and restrict the comments to real people who really can contribute to the post...
Thanks