"Drinks or info chummer, both cost. One costs cred and the other costs favors. Too much of the former will give you a killer hangover, and too much of the latter might just kill you altogether."
A bartender contact/info broker for the Shadowrun rpg setting, can be easily adapted to any cyberpunk or other high tech campaign.
The thieves guild of Mysantia has paid the stone masons guild to put a particular pattern into the stone of new multi story construction.
A small bonus to the climb skill is the result..