I have a widget on the sidebar of my blog for people to sign up for my newsletter, and according to CrazyEggs, for the last few days, I have had 17 people click on the place to write their email address, but only 3 click subscribe. Seems weird that someone would write their email address but not subscribe. Maybe they just accidently clicked on the text line and didn't write anything?
I signed up as a test. It looks like they aren't confirming? If so, consider that a good thing. You don't want so so subscribers. About a fourth of mine don't confirm.