A quick and easy way to follow-up with and build a relationship with a contact is by sharing some insights or resources that could be helpful to that particular person. Pitched correctly it can also show that you understand their business, industry and/or even simply listened during a conversation.
Below is an example of an email that you can use to share a link and/or resource with a contact. Of course, the more personal you can make it the better.
Hi name of contact,
I hope you are keeping well.
When we spoke at [Event] you mentioned/we had a conversation about [Topic].
[I came across this article and thought of you][I thought you might be interested in reading more so I just wanted to send you a link to the website I was talking about].
[include link to relevant article/website].
[I thought it was a great read/you should really check it out because…] and I would really lover to hear you thoughts about it when you have a spare moment.