Now that Evernote limits free users to just 50 notes, it's time to jump ship. And there are some great alternatives to Evernote, ranging from simple note taking apps, to ones that let you make your own wikis.
It's Time to Ditch Evernote for One of These Alternatives::undefined
Trillium lets you run arbitrary JavaScript, plugging into their APIs. It lets you do some cool stuff that you otherwise couldn't with OneNote. If you do need something more powerful than OneNote, and admittedly most people don't, I'd recommend downloading trillium and checking out the sample JS code that the developer wrote.