They actually have multiple parts of the website I did not know were there.
The Open Reading Periods page is split into two sections. One with open dates, and another for year round open markets.
They do have a submission tracker, though I have never used it.
I do find that their market list is more likely to include fiction, poetry, and drabble markets.
Their market pages include important information such as links to guidelines, reading period, fees, and response tim