A number of blogs are written by in-house lawyers or specifically address in-house lawyers. The ones I know of I list below by host and affiliation:
1. Michael Dillon (Sun Microsystems)
2. Geoff Gussis (law firm, Riker Danzig)
3. Hannah Hasl-Kelchner (Lorrilard)
4. Rees Morrison (consultant, Hildebrandt)
5. David Munn (Fair, Isaac)
6. John Wallbillich (consultant, LexVista Partners)
Some of these bloggers offer frequent posts, others go for periods of time without new content. Also, there are probably additional blogs by or for in-house counsel, and I invite you to let me know.