Notification bar icon key??

[Rez90]

I've gotten a few icons on the notification bar lately i'm not familiar with. I don't think they correspond to events...but more service notifications. One is next to the 3g. and it looks like a compass or crosshair...

Is there a key online to see all of the icons in the notification bar?

Thanks for any help

 

[Berner]

Its the GPS/location indicator.

See page 25-26 of the user manual here: http://androidforums.com/htc-incredible/70210-droid-incredible-user-guide.html