To simplify this process, Jerome has created tquery.jsartoolkit, which uses his tquery library to wrap around JSARToolKit. JSARToolKit, by Ilmari Heikkinen, is the core of the augmented reality functionality.
Springbase (GitHub: springbase / node-springbase, npm: springbase) have released a Node driver for their relational data store. This is a hosted database solution that includes a web data browser and management interface, and even SQL support.
They're currently offering a free account with 100 MB storage and 1 GB per month bandwidth (I get no remuneration for mentioning this).
jQRange (GitHub: Gottox / jQRange) by Enno Boland attempts to help deal with W3C and Internet Explorer ranges. The current selection can be obtained with $.range('^'), and ranges can be spanned with $(selector).range().
The plugin even supports regular expressions, so any range matching a given pattern can be spanned. The author has included QUnit tests, and a lot more functionality is documented in the readme file.