Five reasons you should be wary of AOL -
1) They wrap your communications in their own protocol which means thing are a lot slower per connection speed with them than with another ISP.
2) You tend to get far more spam as spammers know that that is where the largest user base is and 'guess' AOL email addresses more than they will with other ISPs.
3) In AOLs 'attempts' to fight spam, they will reject valid email on your behalf. For example, I run my own mail server and I cannot send to any AOL user as they have blocked my mail server. This is not because I have an insecure server or because I send spam ( both of those reasons do not apply in my case anyway ) but because my perfectly legitimate server is on a dynamic address. Big crime isn't it? By doing this they are contravening internet rules, but they do not care. Secondly, if these forums ( Groundspeak ) were to notify forum members by email of new messages to threads that they had subscribed to and traffic reached a certain level, AOL would very soon block all email from grounspeak to all AOL users as they would consider Groundspeak to be spamming! They have done this to my certain knowledge to another forum to which I subscribe. In that case they refused to discuss the matter with the forum owner and the forums then had to tell all it's registered users to update their profile with a different ( non AOL ) address.
4) In June this year it was revealed that an AOL employee had sold the AOL user database to spammers. Do they really deserve your money if they do not have sufficient safeguards to prevent this? http://www.theregister.co.uk/2004/06/24/aol_spam_insider/
5) You will be looked down upon by spotty geeks who'll refer to you as an AOL LUser