Sites which give pointers to and digests of topical articles on XML.
Although many listings currently provide the Amazon.com site for the related book, it is preferred to provide the "author''s website" or online companion for the printed book.

If an online companion/author''s website is not available, provide the publisher''s website for that book.

Books related to the family of Extensible Markup Language (XML) specifications and technologies.
Although many listings currently provide the Amazon.com site for the related book, it is preferred to provide the "author''s website" or online companion for the printed book.

If an online companion/author''s website is not available, provide the publisher''s website for that book.