I've written a post on US visas on Sourcing.io's blog.
Gather a group of foreigners together in San Francisco, and the topic of conversation invariably turns to visas and immigration. For many of us just getting to America is a feat in itself. Overcoming the regulation, hurdles and bureaucracy that encompasses the US visa system is a shared and painful experience we can all relate to.
Five years ago, when I was working back in England, I wanted nothing more than to emigrate and join a tech startup in San Francisco. The trouble was I had no qualifications, no degrees and no connections. It's only through a great degree of persistence, determination, and the support of some wonderful people that I'm living out in SF.