I think this is very dependent on the company and your role. I've given as much as 2 months notice before, and typically it's closer to 3 weeks than 2 weeks, b

I think this is very dependent on the company and your role. I've given as much as 2 months notice before, and typically it's closer to 3 weeks than 2 weeks, but I don't think this is always appropriate. In fact, I'd say it's a bad idea more often than not. You should ensure you're not leaving people in a lurch that you may later use in your network to further your own career (I now work with people I last worked with 9 years ago, as an example, which is an eternity in startup-land). But you also shouldn't extend your notice so long it becomes an imposition. You're leaving, so sort things out and leave.