Ask HN: What communication tools have you seen work well in distributed teams?

From personal experience I love Basecamp and Trello for project management. I've also tried Wrike but it wasn't as seamless as the other two.

I also use Hubstaff for tracking my time and getting time reports. I used to just guesstimate how much I should bill clients but that was such a headache.

I haven't used it personally but I also hear good things about Insightly.

Slack works extraordinarily well for us (4-man distributed team), and we tried HipChat before that, and Campfire before that.

WebEx is good