Hi LIVIADLC!! I traced the path of a visitor to MadridMan.com from a place called HomeFree . They are a "Home Exchange and Travel Companion Matching Service".

They say:

"HomeFree Travel Companion Matching Service The HomeFree Travel Companion Matching Service gives you help in locating compatible travel companions for destinations within your own country and worldwide. Use our travel companion search engine to find a travel companion according to your desired destination, travel plans, budget, age, gender, and special interests. Share a special holiday, weekend, or vacation."

I don't know if they're reputable or not, but you could at least check them out. Good luck!

Saludos, MadridMan