Picasa: http://picasa.google.com/

Free download from Google

Picasa Web Albums: http://picasaweb.google.com

Share your photos online

Picnik: http://www.picnik.com

Online photo editor

MixBook: http://www.mixbook.com/edu

Free online photobooks

Education Related Examples-
World War I- http://www.mixbook.com/photo-books/education/world-war-i-2785
1st Grade Weather- http://www.mixbook.com/photo-books/education/weather-4472819
If You Give a Cow a Shower- http://www.mixbook.com/photo-books/education/if-you-give-a-cow-a-shower-788229
5th Grade Science- http://www.mixbook.com/photo-books/education/science-matters-1546482
Bill of Rights- http://www.mixbook.com/photo-books/education/our-rights-under-the-bill-of-rights-4504261

More Fun with Digital Photos:

Big Huge Labs- http://www.bighugelabs.com

Online Slideshows-
  1. Kizoa - Creates beautiful looking slide shows, w/ a variety of music, effects, transitions to choose from.
  2. Shwup - Great site for creating private collaborative slide shows w/ a number of admin features, such as the ability to allow comments.
  3. Photo Peach - Very unique site that allows users to create quizzes in their slide show through multiple choice questions.
  4. Animoto - One of the most popular sites around w/ an educational instance - nuff said.
  5. Slideroll - A very nice site site that allows the user to make private or allow comments.
  6. Flixtime - Easy to use site where a user uploads photos and selects audio and transitions and then gets a code to embed into their site.
  7. One True Media - Great site to create animated slide shows w/ video.
  8. PhotoSnack - Very user friendly site w/ a drag & drop interface.
  9. Pho.to - Create flash based slide shows and get an embed code to put it on a site.
  10. Vuvox - An excellent site for creating beautiful looking multimedia slide shows.