- The Heinlein Society
- www.heinleinsociety.org
- Endorsed by his estate and exists to preserve the various works and legacy of Heinlein. Offers information about programs for supplying libraries, academic and literary outreach efforts, membership benefits, and Heinlein's favorite charity, blood drives.
4.0
(si*)
>740
- The Heinlein Prize
- www.heinleinprize.com
- Cash award of $500,000 for practical accomplishments in the field of commercial space activities.
3.9
(si*)
>3340
- The Church of All Worlds, Inc.
- www.caw.org
- Religion based in part on the ideas espoused in various Heinlein works.
3.7
(si*)
>140
- Quotable Heinlein
- www.quotableheinlein.com
- Searchable database of 375 quotations from various novels and short stories, along with news, articles, and discussion forum.
3.6
(si*)
>30
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