1) Go to Github 2) Browse the Javascript projects 3) Look for projects which are active with many follows/forks 4) Click on the Issues tab 5) See what

1) Go to Github 2) Browse the Javascript projects 3) Look for projects which are active with many follows/forks 4) Click on the Issues tab 5) See what open issues there are 6) See if the maintainer is active and applies pull requests 7) Pick an issue you can fix, fix it, write a patch 8) Send a pull request 9) See if the maintainer has any comments 10) Go back to step 1 See - you're solving problems. This is the kind of stuff you'd have to deal with on the job, and is the kind of stuff you'll deal with with your own projects as you or your users discover problems. I know exactly a problem you can solve right now with Javascript. * Go to this website - http://maps.huge.info/zip.htm * Move around the map so you can see where various San Francisco zip codes are. * Now try to do this on your phone I'd love for this to be a mobile-friendly website, but it isn't. It's a useful tool, it looks like it's just a mashup of Google Maps and ZCTA's. A perfect project and problem to solve.