Slideshow/Video Tools
The video tools allow upload, editing, and remixing of video to create new content, playable through a web page.

Animoto
This tool analyzes an uploaded set of images and creates a "professional" music video based on a secret artificial intelligence logic. Very easy to create elegant picture shows.

JayCut
Powerful features! Import photos, audio, video, and make a movie on a multi-track timeline plus transitions and effects.

Shwup
Upload media (images and movies) or load from flickr, picassa, Facebook, any web page, even form an email message into an "album". From an album, create a slideshow or a "muviee" using a small selection of themes and music (or you can upload music). Media can be downloaded. No ability to add captions, no ability to link directly to movie (must be invited by email or social network).

Timeline Tools
The main organizing metaphor for these tools is by time/date that can explored in any order. Events are placed on a timeline, and might include text, hyperlinks, images, etc.

Capzles
Turn your videos, photos, blog posts, mp3s into rich multimedia timelines.

Dipity
Collaborative timeline tool, works with YouTube content.

OurStory
Write a 'story' which is what happened on a date in time, add pictures, video, and OurSotry creates a timeline. Imports flickr photos.

Timetoast Timelines
Multimedia timelines.

xtimeline
Powerful and well designed timeline. Attach images or embed media to any entry, provide source info (for historical timelines?), tags. Can import data from Excel/CSV files. Several users report uneven performance, data loss.

Mixer Tools
These may overlap with the Slideshow tools, but generally these ones offer a larger variety of media types that can be "mixed" and end products that are not necessarily linear.

VoiceThread
Weave uploaded or flickr imported images into a media presentation with multiple voices. Record audio, video, or add text or drawn annotations. Others can add video, audio, and text comments as well. See also VoiceThread for Education wiki.

Vuvox
"Turn your photos, video and music into professional quality presentations that can be easily shared with friends and family. " Search images in flickr, google, upload youtube video, embed code generated.

Vuvox Collage
Collage provides a rich interface for creating highly visual presentations along scrolling horizontal strip, with imported pictures, audio, and video plus tools for creating hotspot links to web sites or to open other slideshows. Several reports of inability to save, server outages.

Comic/Sketch Tools
Create your own comic strips or cartoons using imported media or available images. You might need ability to sketch, and these are generally shorter pieces, and were much more of a challenge to fit a story into.

Bitstrips (for schools)
Comic creator tool.

Gnomz
This is a fairly low level tool that will not create any visual masterpieces, but there is an interesting challenge in trying to compose with a limited tool set. It creates those pixel flat icon like figures. You create a cartoon avatar, and you pull from a library of others, and enter their speech or thought bubbles, as well as select backgrounds. The site is a bit challenging to figure out since it is in French, but click the flag in the top right to toggle the site to English.

GoAnimate
Create cartoon-based stories.

ToonDoo
Create your own 1, 2, or 3 panel cartoons using a library of cartoons, text bubbles. Images can be uploaded and manipulated with simple tools. Created "doos" can be combined into "ToonBooks", embedded in blogs, etc. A lot of versatility. With ToonDooSpaces organizations can create private spaces (fee-based) to manage Toondoos which may be more suitable to classrooms.

Kerpoof
Now owned by Disney, Kerpoof is a fun to use cartoon tools with stock shapes and character bubbles, but can also be used to create movies, cards, t-shirts, and more. Check out the new site for teachers that includes lesson plans and tools for creating teacher/class accounts.

PikiStrips
Make comic strips from your own photos using standard sets of frames. Apply PhotoShop like effects to images. Add speech bubbles and other "goodies" (not that 90% of the gallery seem to be dating oriented??)

Pixton
Create simple or complex comics using characters, scenes, objects. All objects are highly editable, and characters can be moved into almost any pose. A future feature will allow animations to be created. See features and special class pricing at Pixton for Schools.