I find it really hard to find the time to write (even though I really deeply enjoy it), in part because I know that once I get started, I don't stop. But I have a start-up to run, so I can't spend all my energy blogging.
Really, my problem with blogging isn't time-management, it's energy-management. At the moment, my energy is directed towards my start-up rather than towards my writing. I don't really know what the right answer is to this choice.