Some of my favorite blogs:
I love old-school d&d themed dandddoodles.blogspot.com for all the wonderful maps and characters that CrazyRed draws and posts. Plenty of inspirational material here for any system you use. He also has a Cthulhu inspired blog that isn't as frequently updated.
Those of us old-schoolers who loved, and still love, the original Fiend Folio will appreciate artist Russ Nicholson's blog where he posts plenty of drawings that still look and feel as great as they did back in the early 80's.
Speaking of Cthulhu, if you like a little Yog-Sothothery in your Swords & Sorcery, this is the blog for you.
The reasons for the omission of combat only become clear when you understand the cultural context of the white box set: that it was aimed at the existing war gaming hobby crowd. They didn't need rules for handling combat, they already had a good understanding of that, what they needed was the form and breadth of the concept of role-playing in general.
Over the years I have collected bits of wisdom and information on how combat was handled by players in those precious early years of D&D, with some intent of formally organizing them into a legible document. Fortunately Aldarron, a frequent poster at Dragonsfoot, has already done the hard work, and he has posted it for free here:
Using Chainmail Combat with OD&D.
I particularly like the way Aldarron gathered information from Swords & Spells, combined with published Q&A's from Gygax, and the Chainmail rules all applied to OD&D into a legible format. If you've ever tried to make heads or tails of Swords & Spells you will really appreciate the work that has been done here.