"A studied approach at Wi-Fi"

[ozwifi]

Great blog entry on RF basics and more: 

Part 1

RF Basics

So, what types of antennas are there and what are the differences?

What blocks WiFi?

Part 2

Understanding RF Interference and What It Does to WiFi

Mapping Your Wireless Landscape

[tintin]

Well written and very informative, even for the non-rf-speaking public.

A resource not to be overlooked