Live polls and Q&As with Xprim
Source: xprim.valuraise.com/
I came across Xprim in my internet travels, and it took a little bit to figure out what exactly the site does. It offers polling of participants in a lecture or presentation setting, along with the ability to collect questions.
The site is currently free, and could be used in place of Poll Everywhere or a Google Form, depending on your needs.