When I review a list, I don't do it to determine whether someone is on it or not. I do it to see who is on it. This makes a difference. For example, I may review one of the 5 lists related to the VM/SP operating system (that's just an example case - there are probably not 5), to see who's on it. On the first one, I see "famous" names. Good, that's going to be an interesting list. I subscribe. On the 2nd one, I see a lot of people but I've never heard of any of them. Probably a user's forum (ie "how can one send a file via RSCS without using SENDFILE?"). That was maybe not a credible example, let's take an IBM-PC related list instead. THERE you are going to find 10 different lists, with a similar description and (probably) completely different topics. I NEVER review a list to try to find the same of someone. I no longer review lists to get at the header - I just do a search on my local LISTS database, which is some 10 times faster than waiting for the reply of a REVIEW command. Eric