I like outdoorsmagic.com for a strait shot of techy gear nerdery. They seem to have a good understanding of clothing systems, they cover the euro brands like rab, and the writing can actually be pretty fun.
It might irk Dave to have bedrockandparadox.com brought up in this context, but certainly his blog has plenty of useful and interesting gear-related insights. I like his emphasis on 'using' rather than 'having' gear, and how his reviews are often integrated with a broader outdoors philosophy. Bedrockandparadox.com also helped get me psyched on other stuff than just walking with a backpack ;)
Is a gear blog for alpinists, but I can think of no better proponent for the importance of good gear than Dane. Returning to ice climbing and skiing after I think about a decade (?) off, Dane brings the perspective of an alpinist who just hopped out of a time machine to discover he's climbing harder, faster and safer, and he knows its not just him, its the gear. For sure, you can happily wear a wool sweater backpacking, but tech bindings, skimo boots, and modern ice tools/screws fundamentally change whats possible in the mountains.
Thanks eugene for the hikeitlikeit.com recommendation. I hadn't seen that till now. I like the photos and the 'about' was enough to have me add it to the rss (I will miss google reader when its gone!)