2011 has been a year of extraordinary growth in our practice at Semphonic. But no part of that practice has grown as dramatically as Social Media Measurement. There's tremendous interest right now in Social Media but it's an area - perhaps even more than mobile - where companies are still struggling to formulate a coherent strategy. That hasn't necessarily stopped or even slowed the pace of investment and maybe that's not unreasonable. If you wait until everyone figures out how to do this stuff, you may find that your competitors enjoy insurmountable advantages.
This is too focused on technology for my taste, but Gary makes some excellent points about overlapping platforms