Twitter user @FashionistaChik asked me about those sometimes "pesky" but effective slide in WordPress plugins you see on many popular blogs. I recently was looking for one myself for SocialWayne.com and found three.
@waynesutton hi do you know the name of the plug that creates a pop up on the bottom right with a related topic. Expand
— TheFashionistaChic (@FashionistaChik) September 18, 2013
If you would like more control on what content to slide in then End Of Page Slide box is suggested. If [...]