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• Lambda the Ultimate - Programming Languages Weblog might have no friends defined. If you are Lambda the Ultimate - Programming Languages Weblog, you can edit your LiveJournal friends so they show up here.
• Lambda the Ultimate - Programming Languages Weblog might have friends defined, but all of their friend's posts might be over two weeks old (according to the times on our servers), and thus wouldn't be displayed here.
• Lambda the Ultimate - Programming Languages Weblog might have friends defined that post only protected entries that you can't view, because they haven't defined you as a friend in return.