I think my site meets the criteria you're looking for (it's positive, and focuses on OD&D 1974):http://www.philotomy.com
It definitely does. I hope to have time to add it and a few other sites to the Links area of the RR web site this weekend. (And also add a Blog roll to the RR Blog.)
I've somehow missed this, but now have it bookmarked for reading. The Lost City
is one of my favorite B series modules. I always wanted to base a mini-campaign around it but never had the player interest. They preferred my Hidden Valley setting for B/X and then BECMI campaigns as it had a tenuous connection to Arn where most of my major fantasy campaigns were set.