As part of their 10th birthday celebrations, Opera is currently giving away free registrations for the Opera browser! Opera is an excellent browser that I’ve used extensively in the past. (At the moment, I'm using Mozilla Firefox, which IMHO, is simply the best web browser available today).
Opera always offers a free version of their browser that is ad supported. These ads are quite unobtrusive and are displayed across the top of the browser window. However, a registration fee is required if you want to remove these advertisements. The good news is that, right now, you can get a free registration code for your copy of Opera.
I'm not sure how long this deal will last, so if you want the free rego, it would be best to head over to the MyOpera website ASAP.