I've been living abroad since 2007, living in Italy, Spain, Argentina, Brazil, India, Colombia and Mexico. I'm a US citizen. For US citizens interested in working on their business, you should know this: if you live outside of the US for 330 days in any 365-day period, you can deduct 100% of the taxes on your income, up to $91,400...

So I lived in India and Italy and Mexico/Colombia for the last year, earning in dollars, spending in rupees and pesos. For americans who have their own web business, it's something to think about....