My site offers a range of products and services, not really linked to a single theme. In the interest of promotion and link building I have been targetting sites that I think will increase my traffic or just help in branding. The major problem is that most of these sites (say 80%) require reciprocal links. I don't have a problem with that but soon my link directory will start to look like a link farm ( I will have about 100 links in all, in separate categories on separate pages). How do I avoid this? I am building content because I have an article section with new articles related to my services and products every two - four weeks. Is there a possibility I could get banned for this?