In the spirit of full disclosure, we've added some Google ads to the site. I tried to make them as non-intrusive as possible, but if you notice any issues or they're just plain annoying, let us know and we'll see what we can do. Obviously ad revenue helps pay for the site, so if you use an ad blocker and can deal with seeing some ads, adding a whitelist for grandprixforums.com would be appreciated.
There's 6 ads total as of right now. Two ads on the forum home page (which are only visible to guests), two ads in each thread (one after the first post and one after the last post) and two variations of page ads (a little banner at the bottom on mobile, and a full screen ad between page loads).
If you have any questions, feel free to ask.