Whether or not you have a Kodak photo camera, you can still use Kodak Easyshare to organize, edit and share your digital photos.
Kodak Easyshare includes pretty much all the tools you would expect from a photo manager, such as being able to organize photos in albums, adding tags, retouching those that need a bit of optimization and sharing them in several ways. You can choose between burning them to a CD or DVD, uploading them to the Kodak Gallery and publishing them on YouTube or Facebook.
While Kodak Easyshare seems quite good at photo sharing, I found it a bit limited as photo manager. The range of tools is fine, but not spectacular and definitely not better than other similar apps. The program's interface design doesn't help either: it's confusing, a bit messy I'd say. On the upside, the program is thoroughly documented.
You can use Kodak Easyshare without actually having a Kodak account, however you'll find many places in the application where it encourages you to do so. Not having a Kodak Easyshare account will in any case limit your use of the application, as you won't be able to order printed copies of your photos or create projects.
Kodak Easyshare is a digital photo organizer that includes a bunch of tools to manage and edit photos, and also gives you access to Kodak photo services online.