The January/February 2015 issue of CAOC Forum has an article by San Francisco Superior Court Judge Curtis E.A. Karnow entitled "Class(ic) Settlement Problems."
The article provides "a list of issues which often seem to pose problems when counsel file motions for preliminary approval of [class action] settlements."
Four resources are listed at the end of the article, including Judge Brick's Guidelines for Counsel re Class Settlement Applications, as uploaded to my blog in 2009 at this link.
Judge Karnow's author's note says that the article "has been submitted for publication in both defense and plaintiffs' publications for the benefit of both bars seeking to resolve class action cases through settlement." The link provided above is a CAOC members-only link. The article is also available here and here.