Indie Acquisitions by Colin Keeley & Brent Sanders - two guys buying and building internet companies and talking about their learnings in the process
Acquisition Anonymous by Michael Girdley, Bill D-Alessandro, and Mills Snell - great podcast breaking down real deals by experienced acquisition folks.
Communities on Small Business Acquisition / Micro-PE
SearchFunder - ugly site, but really the best community online dedicated to buying and selling businesses. Be sure to search the history for answers to your questions. There is a lot of gold in the comments from years ago.