BitShares is the underling technology
Obits distributes the revenue from the ventures related to OpenLedger
BitTeaser distributes revenue from the ad network
Revenues from Obits include transaction fees from OpenLedger, profits from Fun-Casino, etc, if you look into a few articles you should find the ventures related to OpenLedger.
I think a part of the revenues (about 20% or so) of BitTeaser will also go into Obits.
or am I wrong?