NixNote
Open Source
NixNote is an open source client for Evernote.
Leanote
Open Source
Leanote is a self-hosted note taking app.
BeeCanvas
Free Personal
BeeCanvas is an online whiteboard based visual collaboration tool.
WizNote
Freemium
WizNote is a cross-platform cloud based note-taking client.
Zoho Notebook
Free Personal
Zoho Notebook takes the same catch-all approach as Evernote and OneNote, but has a few design ideas of its own.
Elephant
Open Source
Elephant is a notetaker with a classic interface.
Compare Stickies with alternatives
Compare Zoho Notebook and Stickies and decide which is most suitable for you.