AFAIK they offer a free listing but use aggressive sales techniques to 'sell-up' to a paid listing.
I have a client who paid for entry, his log files indicate zero traffic as a result.
I don't even bother going for the free listings any more, as all it seems to do is generate loads of spam for my clients.
19: Online Business Directory Listing
From mid 2002 all ABTA Members are
automatically listed on Ask Alix Europe’s
largest online business directory free of
charge. Prioritised Listings giving
increased visibility are available at a 25%
discount.
maybe they should add, in order to take up the offer, you will be getting a sales call from them...