Sometimes it’s hard to think of a good reason to reach out and ping someone you haven’t talked to in a while. Luckily, a) you don’t really need a reason at all and b) with a tiny bit of research, you can easily find one, anyway.
Log into your LinkedIn account (if you don’t have one – your mission is to make one) and look at the “Updates” section. Scroll through the list and you are likely to find that someone has a new position, has received a promotion, or is working on an exciting new project.
Send congratulations to people with changes to report. Take advantage of the chance to rekindle a relationship. Ask questions to encourage follow-up. Showing you are interested and aware of happenings in the lives of your connections gets you back on their radar.