I’m really enjoying the blog posts of the Freelancers Union: https://www.freelancersunion.org/. You can also follow them on Twitter.
The Wikipedia entry on mononymous persons (individuals who are known and addressed by a single name): http://en.wikipedia.org/wiki/Mononymous_person
The website of “The Chicago Manual of Style Online”: http://www.chicagomanualofstyle.org/
Index-L is a mailing list intended to promote good indexing practice. The group provides a forum for aspiring and professional indexers to share information and ideas relating to the intellectual, philosophical, and technical aspects of index preparation. For more about the list: http://www.indexpup.com/index-list/about.txt And to read the Frequently Asked Questions (FAQ): http://www.indexpup.com/index-list/faq.html
A free electronic newsletter about the publishing industry, self-publishing, indexes, etc. by Nancy Humphreys.
Resources about indexing by Back Words Indexing: