There is an overview of active campaigns here.
https://bitcointalk.org/index.php?topic=615953.0The table is quite self-explanatory.
I was curious just like you the other day and after having a look at that Thread, i wanted to become at least jr. member. hehe
heh, that an interesting find
I did not know that suck a marvellous table exist here
a decent work that guy has made so far !
thank you for sharing!