Website and trivia
In Help, to emphasise the dramatics of teenagehood, Cassie maintained an online diary (which was discovered by Willow following a Google search). Following a suggestion from Joss Whedon, the production team decided to create this website for real, complete with poetry (described by Xander as "Always a sign of pretentious inner turmoil", leading the Scooby Gang to wrongly believe that Cassie had death on her mind and was potentially suicidal) and art from Cassie. It was actually composed and created by Rebecca Rand Kirshner, the episode writer. The site was created and hosted at Geocities, and the writers even registered a domain name for it in the name of Cassie Newton.
The whois entry for the domain name was interesting:
Creation Date........ 2002-09-14 Registration Date.... 2002-09-14 Expiry Date.......... 2003-09-14 Organisation Name.... Cassie Newton Organisation Address. 13 Shadow Lane Organisation Address. Organisation Address. Sunnydale Organisation Address. 94086 Organisation Address. CA Organisation Address. UNITED STATES
Admin Name........... Cassie Newton Admin Address........ 13 Shadow Lane Admin Address........ Admin Address........ Sunnydale Admin Address........ 94086 Admin Address........ CA Admin Address........ UNITED STATES Admin Email.......... email@example.com Admin Phone.......... 666-442-8363
Thus Cassie lived at 13 Shadow Lane, Sunnydale. 94086 is actually the ZIP Code for Sunnyvale, CA. Sunnyvale is much further north than Sunnydale, but the similar names make it a logical joke. The use of 666 in the phone number is typical of Whedon's sense of humour.
The site became extremely popular, exceeded its download limits, and the site guestbook filled up some thirty times over.
When the domain name registry lapsed, the Geocities site was deleted; the Internet Archive has a cached copy.  The domain name is now registered to a company in Hong Kong. Cassandra Newton on Wikipedia