Load boards are great tools, and you can get a lot of loads using them, but there are some tricks to using them that most people don't talk about. You can post your truck in two different ways: A) City-to-City, and B) Market-to-Market. When it comes to finding loads, you'll have better luck posting your truck as Market-to-Market instead of City-to-City.
This is a pretty good trick that took me a while to make a habit, but once I started doing it consistently, I started getting a lot more calls on my loads. Let's look at an example. Say your truck is located in Roswell, Georgia and you're looking for loads. You could post your truck on DAT saying your current location is Roswell — if you pull that up on a map, it's just north of Atlanta. Atlanta has a much bigger market compared to Roswell. So you could post your truck as being in Roswell, or since you're just 30-40 minutes north of the "major" market, you could post it as being in Atlanta instead. If you do, I can 100% guarantee you'll get more calls and more offers on loads to run.
This is called posting Market-to-Market versus City-to-City. Give it a try and you'll see positive results.