Yep, I did a search on the forums and could see no topic in relation to this website www.radarvirtuel.com.

It seems to be using ACARS returns to provide flight data but significantly it has excellent European coverage.

Perhaps Flightaware could investigate the usefulness of this data in order to expand flight coverage into the European area?

If this question has been asked before, apologies in advance!

I think a goodly proportion of the data comes off ADSB receivers - an excellent site and worth a visit for those who have lamented the lack of some european coverage.
In true mode S fashion, not everything shows up!

Once more US aircraft are fully ADSB enabled, how good would that be for enhancing FA coverage!? Virtual radar across the US you say - no way…