I have a question about Level 2 with which I'm hoping more experienced traders can help me. In all the platforms I have access to (TOS, Lightspeed, eSignal, etc.), I always see ECNs like ARCA, EDGEX, BOSX, NYSE, or NSDQ consistently on the the best bid and offer. I see market makers like Goldman (GSCO) and Morgan Stanley (MSCO) listed far down on the bid and offer, far away from the market. Why don't I ever see these market makers at the BBO? Why are they always so far away from the inside mrket?