If your looking for an affordable and convenient way to invest look no further. Sharebuilder is unique because it offers the ordinary "Joe" the opportunity to invest in some of the world's best blue chip companies, mutual funds and ETF's. They do this by focusing on the number of securities purchased rather than by share. This is one of the few brokerage firms that allow an investor to purchase fractional shares of a security. This is possible because of Sharebuilder's low transactions fees which are directly related to the number of different companies purchased rather than the amount of shares...