From what I've read and been told, links between credible sites is one important factor in upping search result position. As an irrigation and fert program company my brain is at a loss about who to link with except for some other service providers such as a couple landscapers and a tree service I refer to. Universities doing turf research would be nice but isn't going to happen. Irrigation manufacturers won't do it because contractors are not authorized, regional service rep, a distributor etc. Any one have ideas? How about linking with quality non green industry sites?