ReadWriteWeb

In our yearly wrap-ups of the best products of 2009, we cannot but notice the shadow that falls over the editorial desk.

We are chilled and saddened by the ghosts of the past year - the apps that should have been, the startups that failed to launch, the brilliant ideas that were throttled, the great minds that were fired, the tech heroes that committed tragic gaffes. But some failures were so monumental that they require specific enumeration and commentary. Here are the 10 worst tech failures of 2009.