Saw them as a sponsor - Uers of Think or Swim can use powerful tools to self-direct their IRA or other investments. It offers unique opportunities to receive free training, Canadian investments (i.e. junior gold / silver stocks, and more.
The ability to transfer positions into Excel, Access and other formats has also been useful as a programmer / investor.
If anyone is using ToS, please feel free to join in. Programming / DBA is a primary job, investing is secondary... until the investment does well enough.