Thats a bit pedantic, just accept the invite then its a like, I think a thread for this here would be a good idea
how if we post our pages here and so mutual advertising? say i ll send invites to all my frens and u send mine to your frens!
check out Twiends.com It's a browser program where you can follow people on twitter, like peoples pages, and visit websites and you'll get points. You can then use these points to list your website and people will follow your twitter, like your page, etc.