In addition to having a network with old colleagues and LinkedIn (which can be really good, if you have a network). Do consider headhunters. Some can be very

In addition to having a network with old colleagues and LinkedIn (which can be really good, if you have a network). Do consider headhunters. Some can be very good and professional (my area is finance and IT). If you're not sure how to contact them, search via LinkedIn - for time efficiency, avoid the bigger shops and look for ones with small looking independent websites (again, finance IT type headhunters) as they're likely to have a personal network of employers to fit you against. Non financial IT, I've little idea.