Chartboost , a San Francisco-based gaming and ad platform, just poached Google Admob’s head of mobile platform and partnership strategy Clay Kellogg to be its chief revenue officer. Chartboost, which was founded by some alums of an early mobile gaming company that Disney acquired called Tapulous , is a platform where mobile developers can cross-promote their work. Gaming studios will usually do a direct advertising trade where they’ll market their titles in other developers’ games. Read more »