After trying to implement a half dozen extensions for thumbnail use, Mavik was my final stop. It is easy to implement and will provide great image enlargement. No need for extra code! This should be your first stop for blog images.

Only took 2 minutes and my adsence was up and running. This was the simplest extension I've used yet. Downloaded it, install it, insert codes, and it is done. Thanks.

It couldn't be easier! Just register with Captcha for key codes and you're on the way. Very professional looking much better than the Joomla default registration.

You have a terms of service which can be changed in the language files.

Thanks Alphaplug for a supreme answer to authentication with Captcha!