I'm planning deprecating the Adsense for tinymailto.com, so it will load a little bit faster.
The Firefox button should stay.
More ideas - ajax popup
I'm planning learning about AJAX in the near future, I'm choosing a book right now. My idea is to put tinymailto.com in your page.
A click on you tinymailto.com URL will popup a litle window pointing to tinymail.com, you will only have to enter the captcha and there you go, your email is clickable.
If the user closes the popup, he must do all over again.
The popup will not be a window, but a html element, something like: amazon wish list popup, google calendar dialog popup for: adding a calendar, "do you want to delete your calendar", etc
That's all the brainstorming for now ...