The ads in Aimoo are located at the bottom of each thread. They don't get in the way at all. The ones at Yuku are right in the middle of every second or third post per thread.....not nice.
You can put backgrounds in Yuku now, but it's a different way of doing it. They do have support pages that explain it. Aimoo you always could. Regardless, you will need to know html coding and will have to have everything linked to photobucket or something similar. One way or the other it's going to take some work and alot of getting use to.
Aimoo has limited amount of storage (can't remember how much) and Yuku has unlimited.
Windows Live Groups.....SUCK!!!!!!! I do not see how it would be even remotely possible to move a group like this over there. You can't do anything with it. I opened a group there to see what it was like. I don't like it at all. I will be deleting it as soon as some people have had a chance to look around. Wizzie....I'll email you the link if you'd like.
I've looked into alot of other places and in my opinion Aimoo or Yuku are the best bet.
This is all I have to report on the subject at this time.....lol