Today I observed two things on SitePoint's Front Page's Newsletter Section -
1. They have no SignUp Form there and are making people visit another page to signup for theirnewsletters!!!
You really should be more inclined to make it easy for your visitors rather than making it difficult.
And, here, SitePoint is doing the later.
2. Subscribe to a SitePoint Newsletter links to exactly the same page as the Newsletter Archives link does. This is plain confusing and when I first saw it, I thought that I had found a bug to be reported.