I run a small business renting a few holiday flats in barcelona.
www.apartments-in-barcelona.com
3 rd year running now and I have had many satisfied customers ,
mostly from UK , and Ireland . Some would be happy to write letters
of reccomendation . Other agencies/sites here have gotton lots of
bookings  because former clients wrote positive letters of
appreciation to Travel Forum web sites. I am looking for a list of a few 
Travel forum.type of web sites , especially in English speaking
countries like UK and Ireland, where people could post letters about
their trip to Barcelona and how they enjoyed staying in one of my
flats and the tours of the city I organize for my clients.