In a bid to stay in step with the growing number of full-service brokerages going into online trading, regulators have boosted efforts to revise rules governing online trading. The action has not gone over well with online trading trailblazers like Charles Schwab, which has argued that holding online brokerages to traditional suitability requirements might deny customers the benefits of technology. Regulatory agencies sorting through the matter include the Securities and Exchange Commission and the National Association of Securities Dealers.