John Chapman's Profile > John's Groups

How to Promote YOUR book on Amazon
8830 members — last activity Sep 30, 2026 07:00AM
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Space Elevator – Help LiftPort build the Lunar Space Elevator Infrastructure
31 members — last activity Jun 03, 2015 09:00AM
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Books, Blogs, Authors and More
3734 members — last activity Sep 28, 2026 01:12PM
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Goodreads Authors/Readers
57751 members — last activity 31 minutes ago
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GOOD REVIEWS
8785 members — last activity 2 hours, 52 min ago
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Modern Good Reads
6840 members — last activity Sep 26, 2026 09:01PM
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