Infuse Learning, Socrative Learning and padlet. From the experience of other teachers in the classroom and my own preference, I would most likely choose Socrative Learning. Infuse looks easier to use for teachers, however, I think the Socrative Learning is more engaging for students. The choice of games and team games are very competitive and motivate students to know the concepts they are learning for their team to have the high score.
There are so many choices for online assessment of students. The key is to first try one assessment tool which is easy to use. Another key item is to choose one part of the online assessment tool to 'test' with students. With an exit ticket, you can easily survey if students liked the assessment tool they used.
I have used Plickers as an online assessment tool with my students. I was disappointed in my results. This assessment tool was very time consuming to set up as this site does not have options to upload any documents or spreadsheets - every item must be manually typed in to the site. When I used Plickers, the app did not work at all after my second period. I had a hard time during my 2nd period scanning Plicker cards with light reflections from the cards making the scanner not able to read them easily. If Plickers application ran smoothly and was more user friendly, I would enjoy using this to assess my students as this tool gives immediate feedback on the number of students who correctly answer specific questions.