LJ-virus!

[shadowscast]

Watch out if you see a post on your flist with subject "Interesting" and body "This is very interesting," where the "this" is a link; if you click on the link, it will instantly make an identical post in your journal.

Comments

[shadowscast.livejournal.com]

The posts where the body of the text is hidden use a tag called "lj-cut," which is different from a link.

See here for instructions:
http://www.livejournal.com/support/faqbrowse.bml?faqid=75 (http://www.livejournal.com/support/faqbrowse.bml?faqid=75)