I hated tag clouds because I didn't understand them. I didn't understand the benefit of those clouds. Today I've understood the huge benefit and actually think they are a must-have. They make using the internet more joyful.
I'll try to explain why I think every website profits from being browsable. I'll show examples where websites lost this feature and are more or less useless to me, and even lose profit. And I'll try to provide ideas how to solve the situation.