Does anyone know of a good link building case study? A B2B focus would be a plus

[RiseSEO]

Looking for a solid analysis of a white-hat campaign that showed tangible results (if one exists).

[makeshiftyy]

These are both videos from Distilled conferences that offer what you're looking for

http://www.distilled.net/store/sl-2011-cases/

http://www.distilled.net/store/linklove2011-structure/