Ok check out this first site:
The recips on this page are one line recips. They just say the name of the site and link to the homepage.
This is two line with niches. If you notice it shows a name of the site and below has a line with a category pointing to a niche. Most freesites want this way, but honestly any of the important ones take it either way.
I use two lines, but I'm going to change to single lines.