I thought that Joomlapolis was using YaNC Newsletters to notify us of updates, but unless you are still Joomla 1.5 as your website how can it be? I cannot locate the YaNC Newsletter that will function on 1.6. Did you do an upgrade yourself? Are you using a different newsletter component? I like the idea of having a Tab for my CB registered users where they can select the categories of newsletters they wish to subscribe to.

What advice can you provide?

Thanks!
WebMuse