Abraham Lincoln Presidential Library and Museum

http://www.alplm.org/

Ansible

http://news.ansible.co.uk/Ansible.html

Anders Sandberg

http://www.nada.kth.se/~asa/

The Dinosaur Toy Blog

http://www.dinotoyblog.com/

Greenland Guide

http://www.greenland-guide.gl/

The Patrick O'Brian Compendium

http://www.patrickobrian.com/

Metazoica

http://www.metazoica.com/index.html

The Banksonian

http://banksoniain.netfirms.com/

Geek Dad

http://www.wired.com/geekdad/

100 Year Starship

http://www.100yss.org/

Big Finish Productions

http://www.bigfinish.com/

USGS Hawaii Volcano Observatory

http://hvo.wr.usgs.gov/

Our Stellar Neighborhood

http://ourstellarneighborhood.blogspot.com/

Oceans of Kansas

http://www.oceansofkansas.com/

Radical Cartography

http://www.radicalcartography.net/

The Photographic Periodic Table of Elements

http://periodictable.com/

The Wooden Periodic Table Table

http://www.theodoregray.com/PeriodicTable/

eFanzines.com

http://efanzines.com/

Uncyclopedia

http://uncyclopedia.wikia.com/wiki/Main_Page

Malin Space Science Systems

http://www.msss.com/

The International Map Collectors' Society

http://www.imcos.org/

Northeast Document Conservation Center

http://www.nedcc.org/home.php

USA Gymnastics

http://www.usa-gymnastics.org/pages/index.html

Victorian Space Age

http://www.victorianspaceage.com/index.html

The Enterprise Project

http://www.waxingmoondesign.com/index.html

Project Icarus

http://www.icarusinterstellar.org/

Greg Egan's Home Page

http://gregegan.customer.netspace.net.au/

Groundswell Earthquake Outreach (AZ Shakes Blog)

http://groundswell.azgs.az.gov/

xkcd

http://xkcd.com/

BBC Through the Night

http://www.bbc.co.uk/programmes/b006tmq9