Originally Posted by HarryT
Many employment contracts (in the UK, at least - don't know if it's the same elsewhere) specifically prohibit you from having any other form of paid employment. If that's the case, it's always best to be open about it and tell your employers that you are writing (or whatever else it is you're doing).
I have never seen a contract like that here in America. We have non-compete contracts, but that is more specific then what you seem to be talking about.