Yes, Gwinnett County Public Library offers streaming video through OverDrive.
OverDrive is a digital platform of eBooks, eAudio, Music, and Video titles. Streaming video titles can be viewed on mobile devices and computers that have an HTML5-supported browser. Users can check out titles for 3 days, 5 days, or 7 days. For an overview on using OverDrive streaming video, please see the OverDrive Help article linked below.
These services are free to library cardholders.
Other sources available for video include Britannica video segments, Great Courses DVD Series, PBS History Subject search w/format DVD, Discovery Education DVD series.