Valve floater

Thanks. I finally got to fly with some guys online. I just kept checking in and joining many times. The next question i have is, is there any way to check to see if someone is online without going to every scene? Is each flying scene independent of who is flying in that scenery at that time. I don`t know if i am stating the question correctly, but is there anyway to find someone flying without going thru all the flying sites before you run across a flyer online? Are they more popular sites i could go to first if so?