:::OK done. I've lifted the block and left them an apology. In general, the two places I point people to are Wikipedia:External links and Wikipedia:Spam. Some spam linkers like this one can be well intentioned - they assume that anyone reading each one of the pages would also be interested in their web site. Unfortunately the  link templates aren't entirely appropriate for cases like this as they tend to be a little brusque and only partially point to policy. Hopefully they will return with the good edits.