Pesky thing, tomorrow. Day after day, it shows up and brings technological innovation that alters the best-laid plans of every business owner.

Managing for the future isn't easy. Emerging technologies and new developments can create a tumbling mash-up of hard-to-understand products and services, from web-connected printers to robots that represent you in meetings. And some innovations are even harder to get your head around--like an internet that thinks on its own and actually does some of your work for you. (No kidding, that's coming.)

To keep you sane--and to try to help you get some sleep at night--here is our list of the top 25 tech tips, trends and megatrends: what's new now, what will be new tomorrow and what you can expect to grapple with even farther down the road.