Marcin Wrona's Profile > Marcin's Groups

Amazon Kindle
11650 members — last activity Jan 11, 2026 09:14PM
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Promoting and Socialising with authors
184 members — last activity Mar 01, 2023 03:49PM
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Goodreads Self Published Authors
1399 members — last activity May 25, 2025 09:51AM
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Building a SciFi/Fantasy Library
3662 members — last activity Nov 01, 2025 06:20AM
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Goodreads Authors/Readers
55813 members — last activity 1 hour, 15 min ago
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Indie Book Collective
2957 members — last activity Jan 12, 2026 02:38AM
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Book Promotion Forum by Genre
719 members — last activity Dec 19, 2025 08:59AM
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Editio Self-Publishing
1424 members — last activity Nov 17, 2025 07:25AM
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