This is a nice run-down for those looking to swerve into the U.S. for a valid reason (work/study)

If anyone seeks less-than-a-year-long work, J-1 Visas are arguably the easiest to get if one has some affiliation with a university. (i.e. students)

Proof of concept: I have co-run a non-profit program which connected people in Finland with startups in the Bay Area. I wish there would be more programs similar to http://startuplife.fi (sent close to 100 so far and more than a dozen YC companies have signed up for the program last batch.)

Another related blogpost for the J1 track: http://blog.sendtoinc.com/2013/12/11/silicon-valley-internsh...