RWF - a good example of a link farm would be a FFA site that does "nothing but" provide links - no text content, and usually consists of numerous attempts to spam

The model banner pages are a part of a larger site that has a purpose other than to just list links - and quite honestly while I wouldnt expect those to be banned, I also wouldnt expect them to rank in the SERPs very well (the link pages that is) - although Ive seen some where there is a brief synopsis written for each banner that do well - text=content
