WordPress plugin for opt-in forms
There is a great plugin... but it only acts as a sidebar widget. This is only half the battle- most of us want the form in the post/page, not just the sidebar.
Pasting the code into the WP editor can often alter it in their visual/code view... not to mention styling it is always a pain with the code.
How 'bout it, 1SC folks?
David Farr Direct commented
I had a custom plugin made that does just this and is compatible with the new fields. Contact me if you're interested. firstname.lastname@example.org