It's very easy to get access to arxiv.org, if you're at a university or a company doing research you'll surely have a colleague to vouch for you. Even if you're

It's very easy to get access to arxiv.org, if you're at a university or a company doing research you'll surely have a colleague to vouch for you. Even if you're a lone wolf, just ask someone on a subject-focussed site or email a local professor.