Thanks, Robert and Sam! I'm now in Orkut! But Scoble humiliates me further. If there's one thing more humiliating than begging for an invite, it's begging for an invite and having to clarify who you are.
Actually, this is evidence that Scoble lives in a future not yet distributed. I live dangerously close to a world where "If it ain't on the first Google results page, it doesn't exist." Scoble, who reads something like 1,000 RSS feeds, is entering a world where "If it ain't one click from the RSS feed, it doesn't exist." If that world becomes common (and it's plausible), there's a wealth of software opportunities -- not having to do with searching large numbers of RSS feeds (a challenge, but last year's war) but with contextualizing individual posts.