No. The popup isn't necessary. It's an option. If you put it, you will only get more points, so; more exposure and more traffic.
If you do not want to put the popup, we totaly respect that and won't bug you with your choice. You can still be registered on Wedoo.com without any popup.
Don't forget that their are other options too; the text link, the logo link and the search box, which are also optional as well.
