In the LJ Guide: Answering Support Requests, the link to "Livejournal Tutorials and Lessons" in the appendix of useful links is incorrect. It links to http://www.livejournal.com/community/howto/ when the actual url for the resource is http://www.livejournal.com/users/howto/
Also, while writing this post I double-checked the other links in the appendix, and learned that the link given for "GIF Editing" (http://webservices.adobe.com/save4web/main.html) is no longer valid as Adobe has discontinued that service. It should be removed, unless someone knows of an alternative provider of the service.
I hope this entry was useful and formatted properly to meet the needs and standards of this community. If not, please let me know and I'll try to improve next time.