This month marks the end of September, but the month — and summer — goes out with a bang in this week’s “The MUG Event Calendar.”

Andy Ihnatko of the “Chicago Sun-Times” and “MacNotables” will be the very special featured speaker at a New Jersey Group, Apple Senior Systems Engineer Dave Marra will present to a Pennsylvania group, and members of The Apple Store Staff will show off some cool products to a Florida group.

What’s more, a group of Mac celebrities will be speaking at the North Coast Mac User Group’s annual Macintosh Computer Expo, and include, in roughly alphabetical order: “Macworld” Senior Editor and “MacNotable” Christopher Breen; “Typical Mac User” host Victor Cajiao, “The Mac Observer”‘s Bryan Chaffin and Jeff Gamet; “Amateur Traveler” host Chris Christensen; “The MacCast”’s Adam Christianson; Mac author and expert Jim Heid; Mac authors Tom Negrino and Dori Smith; Kurt Schmucker of Microsoft; graphics author Lesa Smider; and digital photography expert Derrick Story.

Other topics on the week’s agenda include Address Book Apple Mail, iPhoto, Evernote, free/low-cost software, online TV hardware options and more.

“The MUG Event Calendar” can be found at “The MUG Center” (http://www.mugcenter.com), an online resource for Mac User Groups. MUGs are good places for making new friends in the Mac community, imProving your computing skills, finding solutions to technical Problems, and perhaps locating a good deal on used hardware. For more info on MUGs, and to find the location of the one nearest you, go to Apple’s MUG page (http://www.apple.com/usergroups).