It’s helpful to have a list of community bulletin boards where you can post notice of book signings, talks about your books, and so on. Here is my list for the Anchorage Area where I live.
Anchorage Area Community Bulletin Boards for Public Outreach
Northern Lights—drop off at Customer Service
Eagle River—requires Store Director approval, non-profits only, take to Customer Service
Wasilla—Human Resources approval required
1650 Northern Lights—has none
1225 Abbott—Customer Service puts up on Mondays. They have key.
7731 E Northern Lights—just behind customer service in entryway
1501 Huffman—has none
1340 Gambell—in front of entryway
4000 W Dimond—next to restrooms
5600 Debarr Rd—just past liquor store
Wasilla—toward east in between stores hallway