Shmini Atzeret and Simchat Torah Index - OU.ORG 
OU.ORG presents Shmini Atzeret/Simchat Torah - guide for the final days that follow Sukkot, with basic and advanced levels, including audio recordings of special prayers.
http://www.ou.org/chagim/shmini-simchatSukkot - VBM holiday Journal
Articles on the holiday of Sukkot from the archives of the Virtual Beit Midrash, in the areas of Law and Jewish thought.
http://www.vbm-torah.org/sukkot.htm
Sukkot Central - OU.ORG
OU.ORG Presents Sukkot, with basic and advanced articles, practical guides, and links.
http://www.ou.org/chagim/sukkot/
Chelm
Resources and information on how to build your own sukkah.
http://www.chelm.org
The Karaite Korner - Hag HaSukkot
Karaite interpretation of Sukkot
http://www.karaite-korner.org/sukkot.shtml
Mitzvos On The Go
Worldwide directory of Sukkahs available for public use. The purpose of this site is to enable people who work on Chol Hamoed to eat lunch in a Sukkah nearby
http://www.mitzvosonthego.org
Sukkot Guide on Chabad.org
How to celebrate, say, pray, learn and eat on Sukkot; plus printable guide, multi-level study, recipes, games, audio songs and stories.
http://www.chabad.org/holidays/JewishNewYear/template_cdo/aid/4126/jewish/Sukkot.htm
