Here is a great article that we found on how to benefit from

http://smallbiztrends.com/2015/04/benefiting-from-trade-shows.html

Here are some key points!

1.  Use social media to showcase your booth after the end of the show.

2.  Ask attendees to sign up for company newsletters to keep them in the loop about your company.

3.  Find any customers or attendees that you met at the show.  Find them on social media, like or follow them.