It took them longer than I expected, but it looks like Google has finally come out with a Related Links feature that people can add automatically-updated links to related searches, news or web pages on to their sites. Think Google Adwords only with search results instead of pay-for-placement advertisements. The text-box is simple to add to any webpage (it took me all of 30 seconds) and gets updated to whatever info is current when the page is viewed — essentially adding dynamic related content even if your page remains static.
One thing I didn’t have to worry about with Margin Notes was how to keep the system from being gamed by spammers and Google-juice stealers, though I did have to worry about relevance to individual readers. Something I’d like to see is a similar system that uses my own RSS subscriptions as the core source of info, plus perhaps one level of linkage out (e.g. take my blog-roll & RSS subscriptions plus the blog-roll and RSS subscriptions associated with each of those sites). That would give me some amount of personalization as well as make it harder to game the system.
(via Google Blogoscoped)