Microsoft Live Labs announced the worldwide availability of Photosynth where users can create their own Photosynth collections - or “Synths” - for free. Previously, Photosynth was only available as a Technology Preview without the ability to create your own Synths.
To start using Photosynth yourself, just head on over to the new Photosynth website and login with your Windows Live ID and create a Photosynth ID. This Photosynth ID will be tied to whatever Synths you create. Depending on the number of photos in your Synth, it could take anywhere between 2 to 30 or more minutes to create and upload. When you create a Synth, you can give your Synth a name, description and even assign it some tags. Everyone is given a quote of 20GB for their Synths.
To view and create Synths, a 7MB plug-in must be installed first from either Internet Explorer (6 or 7) or Mozilla Firefox (2 or 3).
if you want to know how to make good Synths? Check out the Photosynth Guide which explains in great detail how to take photos that can be used to create good Synths in Photosynth. You can also watch this awesome "How-to" video from Laura Foy on creating good Synths in Photosynth as well.
You should also check out the Encyclopedia of Life Synths. These are great examples of some of the Synths you can create. The Encyclopedia of Life is a global project to document and photography the Earth's 1.8 million species and make the information freely available via the Internet.