Some input on Tayda Electronics:

I started using them a few years ago and they've been the cheapest source of basic electronic components I've been able to find, short of ordering direct from China. Their cheapest shipping typically takes a week and a half and usually only costs $1-$5. They occasionally have coupons on their facebook page. The only catch is you must place a $5 minimum order. I've placed 14 orders with them at the time of writing this and haven't had a single issue. They've even started stocking breakout boards and Arduino Uno and Nano clones. I've bought both the accelerometer and Nano and both have worked without any issues. The Nano is currently $3.69 and the adxl335 is $1.59, plus resistors for less than a penny a piece. My only complaint is that I wish they had a rating from the Better Business Bureau, but again I've yet to have any problems with them. Great website, would recommend.