I have come across another website designed to help people learn Hausa. It is called “Hausa Online Resources” and is part of the Language Resource Center of Columbia University. The following screenshot shows the main menu:
Starting from the main menu, you could choose to do a vocabulary quiz:
What I found most useful is a tool where you can listen to an easy Hausa text and read it alongside:
Whenever you point your mouse on a word in bold print, an explanation of the word is given underneath the text. In the following screenshot, I pointed on allo:
The only criticism I have is the orthography, which doesn’t differentiate between normal and hooked letters. Also, there are many typos. Still, I think this resource can be very useful for beginning Hausa learners.