www.interactivebrokers.com Allows lots of connectivity for outside platforms, no built-in algo tools, all third party, has options Software List www.interactivebrokers.com/Universal/servlet/MarketPlace.MarketPlaceServlet Charting https://gdcdyn.interactivebrokers.com/Universal/servlet/AccountAccess.AuthenticateSSO?action=ACCT_MGMT_MAIN&loginType=1&clt=0 Chat http://chatsrv1.interactivebrokers.com/fchat/chat/flashchat.php Elite Traders might be a good user forum https://www.google.com/search?sourceid=chrome-psyapi2&ion=1&espv=2&ie=UTF-8&q=elite%20traders&oq=elite%20traders&aqs=chrome..69i57j0l5.3711j0j8