Is posting referral links on your myLot page against the rules?

Yes it is. A lot of people (including myself) put referral banners on their profile page. MyLot doesn't seem to have a problem with this. If you have a money making site, it's also a good idea to add a link to it from your profile. Incidentally, I had a bit of difficulty at first adding banners to my profile - they weren't showing up after I saved them. I found out from someone here that you have to put some text in as well as the code for the banner, otherwise it doesn't display for some reason.

If you go to "Preferences" at the top of the page,you can put a link to your own website.This will put it on your profile.