Remember everything. is the tagline of Evernote Corporation. Evernote concept is simple, your notes with you everywhere and always accessible. They version may seem a bit more accurate:
Evernote allows you to easily capture information in any environment using whatever device or platform you find most convenient, and makes this information accessible and searchable at any time, from anywhere.
I was a bit skeptical at the beginning. I have tried several times to use the Google notebook, and I never felt they got it quite right. I had to force myself into it. So far Evernote is looking promissing. Evernote, besides the web app interface to your notes provide desktop apps (for Mac and Windows), cellphone apps, clippers, and more. Definetely worthed to take for a spin.