yep,all good advice, the 2 key points though:
1/ find out who your contact is, ie who would be doing the buying or the right person in marketing etc
2/ be very careful approaching endusers as you may find your self involved in a drs or wipo. ok if its something like cars.co.uk but many names could constitute bad faith even approaching them to buy.im not even talking blatant tms either, as theyre not worth registering at all.
say for example you owned a plural of a surname or a christian name for example. lots of firms may use
one way around can be to put up a holding page saying site has been taken down but now being sold off, and put a link to your sales site. worth covering arse