Australian Metal Guidehttp://www.ausmetalguide.com
A reference site that focuses on Australian metal and heavy rock acts exclusively.
BNR Metal Pageshttp://www.bnrmetal.com
The BNR Metal Pages is the online home of Brian Russ, a long-time metal fan who has taken it upon himself to catalog everything he has heard. This site was the inspiration for Librarius Metallicus. It's a great resource.
Shortly after Librarius Metallicus went live, another similar site sprang up. Their approach is a bit different, in that they let anyone contribute, but leave a few moderators to review and approve submissions. I considered that approach when building Librarius Metallicus, but I decided it would be easier to maintain if I left control of who could add material to people I trusted to not need supervision. Different approaches, different results. Regardless, it's another great resource for metal fans.
New Wave of British Heavy Metal Online Encyclopediahttp://www.nwobhm.com
Incomplete but interesting listing of bands from the NWOBHM period. Includes interviews, articles and photos from the time and sometimes sketchy bio and release informatoin.
New Zealander Gary Sharpe-Young has built perhaps the world's ultimate rock band information resource, with complete discographies and well-researched, highly detailed biographical data for thousands and thousands of rock and metal bands from around the world.
Pretty similar to us or Metal Archives.