It has been around a while, but hadn't really impinged on anything I was doing. However, I have just taken a slightly deeper look at Google Subscribed Links and it's a really interesting addition to the Google portfolio.

I've played around with Google Coop before, in terms of Custom Search Engines, but not the aspect that is subscribed links. In essence, you create a file of a specific format (XML, TSV or RSS), tell Google about it, get people to subscribe to it and then the results will appear above the normal Google results.

Here's an example:

Of course, the downside is that unlike a normal OneBox, you have to get people to actually subscribe to your information. However, there's still the possibility here that there are people want to know your information above the Google Search Results. It's less random in some ways because a first answer (if there is one) will come from a site they trust.

So if Vertical Leap created one for our blog entries, and I searched for something like "Universal Search" the first entry that would come up before the Google results would be the blog I did on Universal Search Examples last month.

This way, I could do a search on Google for something to do with SEO and it would always let me know if we have blogged about the subject in the past.

If you have a site that provides information or has a community, then this would be a good thing for you to implement as a way of enhancing the search experience for your visitors (and keeping you in mind).