Finding a Roommate in Lyon

I located a website: www.appartager.com for finding roommates in Lyon and, apparently, anywhere else in the world.

How it works:
You create a profile which includes, obviously, your criteria and preferences. Then you write a little blurb about yourself and submit it to be scanned by appartager.com members also looking for roommates.

After joining the service, you can either 1) search through the postings to find profiles that fit your criteria or 2) wait for periodic e-mails by the site's administrators of new postings that fit your criteria.
This service is quite good except membership is divided into "premium" (requires payment) and "basic" (free).

The site's administrators advise that communication between two basic members can get right annoying because you can only send each other "flash messages" which are template messages such as: "I am intrigued by your ad" and "Are you still looking for a roommate?" with only yes or no options. The administrators add that, for fairness and general credibility, they do monitor and will delete any blurbs that include any contact info or pervy comments.
Premium membership displays your e-mail - so interested parties can contact you - and also gives you access to the contact info of others.
(I was lucky enough that my new potential roommate used her friend's premium membership to get my contact info).

Tip: I think that I had generated some interest in my profile because I had blurbed that I was an anglophone Canadian who could help my potential roommate improve their English. I think it's useful to let them know that you're useful.