"Things only work at social network scale when the entire network can focus their attention on relatively few items. That’s why the News Feed works, but the global Like doesn’t."

Haystack Blog » Facebook’s ‘Like’ button makes me lonely (via jryu)

Rafer sez:
Nearly true, but not exactly. If you can take the real time out of it and show results over a long period, the number of items can be much higher. MyBlogLog widgets have no time-date stamps for exactly this reason.