FERS Guide - Dan Jamison, retired FBI special agent, is regarded as a national subject-matter expert in retirement benefits for federal employees. He has authored the FERSGUIDE for over 20 years. Dan has a wealth of great information, and the subscription cost is very inexpensive.
NARFE.org - A solid list of short, instructive articles to help provide the basics. If you subscribe, they also provide the best all-around guide to each state's tax treatment of federal pensions.
Gates Notes - If you're a reader, you'll find a lot of great things here.
GNOD - a very interesting, interactive way to get recommendations on music, movies, books and art.
Pine Box Art - my personal website that shows some of my artwork and a little book that I wrote