Aish.com http://www.aish.com/holidays/shavuot/default.asp
Shavuot insights on Torah, Mt Sinai, Belief, chain of transmission;  laws and prayers; audio shiurim.

American Jewish Joint Distribution Commitee (JDC)
http://www.jdc.org.il/fsu/jewishyear/english/sivan_shavuot.htm
Educational materials at introductory level

BJE Metropolitan Chicago
http://www.bjechicago.org/tr_learning_activities_detail.asp?id=5
Shavuot fruity enhancement ideas for preschools through high school.

Chabad http://www.chabad.org/holidays/shavuot/default.asp 
Shavuot: Insights, introductions, laws, kids' stuff - animated story, recipes, online videos 

CLAL - National Unity Shavuot
http://www.shavuot.org/
Online and downloadable texts, sources, questions, resource cards for familes and upper elementary classes.

Cyber Kitchen: Shavuot Recipes
http://www.cyber-kitchen.com/rfcj/category.cgi?category=SHAVUOT

Hagshama Department, WZO
http://www.hagshama.org.il/en/resources/expand_subject.asp?id=135
Insights and issues for students and adults

Hampstead Garden Suburb Synagogue
http://www.hgss.org.uk/home/children-resources/index.shtml
Stories for Shavuot - for families, teachers and supplementary school educators

Hebrew Songs [Jewish Australia] http://www.hebrewsongs.com/shavuot.htm
Traditional Shavuot songs and a couple of Israeli ones in transliterated Hebrew with English

Hillel http://www.hillel.org/jewish/holidays/shavuot/default.htm
Resources, sources, and ideas for students and young adults 

Holidays Net http://www.holidays.net/shavuot/
Shavuot on the Net: Family education website - meanings, agricultural importance, customs, 10 Commandments, ecards. Suitable for non-Jewish schools.

Jewish Freeware [Barry Dov Lerner]
http://www.jewishfreeware.org/downloads/folder.2006-01-07.1071045828/
Shavuot Companion: background and customs; study resources; modern and traditional stories; rhymes; games. In 2 versions - Family education, or as Tikkun Leil for students & adults.

Jewish Holiday http://www.jewish-holiday.com/shavuos.html
9 annual collections of insight articles on modern life, Judaism, Shavuot laws, for students and adults. For recipes see: www.jewish-holiday.com/shavuosfood.html

Jewish Outreach Institute http://www.joi.org/celebrate/shavuot/index.shtml
How we celebrate ShavuotIntroductory website with messages and revelations, for students and adults

JTSA http://learn.jtsa.edu/shavuot/
Shavuot @ JTSA. For families & adults: origins of Shavuot, Ruth as a role model; study together; kids' stuff; recipes.

Judaism About http://judaism.about.com/od/shavuot/
Selected articles related to Shavuot, for students and adults; recipes.

The Karaite Corner http://www.karaite-korner.org/shavuot.shtml
Insights on the Karaite religion, different from Rabbinic Judaism

Kosher Delight http://kosherdelight.com/ShavuotRecipes.shtml
Shavuot Recipe Bank in Hebrew and English.

Lookstein Center, Bar Ilan University
http://www.lookstein.org/lessonplans_output.php?id=-1965390&existing=
Lesson plans for day schools, for K10-K12.

Machon Chagim [K. Beit Hashita] http://www.chagim.org.il/shavoot8.html
Israeli Shavuot songs in clear font Hebrew

My Jewish Learning
http://www.myjewishlearning.com/holidays/Shavuot/TO_Shavuot_Themes.htm
Multi-level Shavuot themes & theology companion, for students and adults.

National Jewish Outreach Program [NJOP] http://www.njop.org/html/Shavuot.html
Introductory and explanatory materials for young adults - main themes; English blessings; recipes.

Nurit Reshef http://www.bus.ualberta.ca/yreshef/pesach/playroom.html
From Pesach to Shavuot: Web publication and online game center, using Jewish Agency resources

Ohr Somayach http://ohr.edu/yhiy.php/holidays/shavuot/
Insights on the Torah; themes, Laws & customs of Shavuot; Torah readings; Ruth; ask the Rabbi; riddles & rhymes. For students & adults.

ORT http://www.ort.org.il/year/eshavuot/default.htm
Introductory website for teens, with additional sources on Ruth and some contemporary perspectives

OU.ORG http://www.ou.org/chagim/shavuot/default.htm
The A-Z of Shavuot in sources, laws, tefillot, customs, insights; audio & video shiurim, audio Megillat Ruth; video; quizzes.

Shironet http://shironet.co.il/documents2/category/hagim.htm#13
Dozens of modern Israeli songs in Hebrew, with some traditional songs.

Social Action
http://www.socialaction.com/education_resources/jewish_holidays/shavuot.shtml
Tikkun Olam discussions and ideas that fit well with Shavuot, for teens and upwards

Torah Tots http://www.torahtots.com/holidays/shavuos/shavuot.htm
Reading material, summary of Megillat Ruth, online games for families and reading age children; lots of coloring pages, ecards; recipes.

Torah Org http://torah.org/features/holydays/shavuot.html
Shiurim online and articles about Written and Oral Law, Megillat Ruth; Parshiot; for advanced adult browsers; more resources under Yomtov; Maharal.

URJ http://www.urj.org/holidays/shavuot/
Shavuot resources for families, day schools and community

USCJ http://www.uscj.org/More_Shavuot_Resourc5604.html
Introductory and thematic resources for families and communities.

USY http://www.usy.org/yourusy/reled/chagim/shavuot.asp
Introductory site for teenagers, madrichim in USY. 

Virtual Jerusalem http://www.virtualjerusalem.com/jewish_holidays/shavuot/index.htm
Introductory educational materials for teens: Torah, Mt Sinai, First Fruits & Customs.

Yeshivat Har Etzion http://www.vbm-torah.org/shavuot.htm
Advanced Shiurim on: Shavuot; parallels, significance of Megillat Ruth; Bar Yochai; the Omer; ideas for Tikkun Leil Shavuot shiurim; extensive sources archive. 

613.org http://www.613.org/shavuot.html
Shavuot and Omer Classes for adults, from Jewish Torah Audio

eCards
http://www.123greetings.com/events/shavuot/

Links Collections also available on:
http://www.jr.co.il/hotsites/j-hdaysh.htm
http://www.etni.org.il/holidays/shavuoth.htm
http://www.huc.edu/tartak/events/06/ShavuotWebsites.pdf
http://www.geocities.com/Heartland/Hills/1259/shavlinks.htm
http://www.caslt.org/research/shavuot.htm

More Hebrew links from http://kaye7.school.org.il/shavuot2.htm
For more links in Hebrew, Russian, Spanish, French & German, please contact us on askeducation@jafi.org