I've been using TD Ameritrade for more than 10 years. I started with Datek Online before it merged with Ameritrade in 2002. Not sure why but my fee is now $5 per transaction, down from usual ~$10. It has many trading platforms. The normal web based tool is sufficient for buy-and-hold stocks but for active trading especially trading options, it's ThinkOrSwim (TOS)platform is superb.

This is from Wiki:

TD Ameritrade earned five stars and finished second overall in the StockBrokers.com 2011 Online Broker Review with the thinkorswim platform taking top honors. In 2012, they earned five stars, a first place finish, and a slew of Best in Class awards along with thinkorswim once again taking top trading platform. For 2013, TD Ameritrade repeated their #1 Overall performance, earning four and a half stars, a first place finish, thinkorswim as top trading platform, and finished first for new investors.

This post has been edited by kimyee73: Aug 16 2013, 12:15 PM