Complex sentence: The 9th edition (December 2000) was the last published as a book and was also made available as a database for free access via the Internet: since then, the Central Council has continued to maintain the guide online.
Split into simpler sentences: The 9th edition (December 2000) was the last published as a book and was also made available as a database for free access via the Internet. Since then, the Central Council has continued to maintain the guide online.