This is more a wish than a prediction but I am betting that there will be one killer search engine for all the social bookmark services, someone to do for bookmarks what Technorati does for blogs.
Wink is the only tool that is merging the results but how are they ranked is the question.
What you’d think happens is that the item that has been bookmarked the most in all services with that tag will get top ranking and so on…I guess this is TagRank.
They could also mix in a Google link search and Technorati Link search to the tweak the ranking I guess, but the idea of just pure Tag Rank is good I suppose.
For each result set a link to the tag in all the services would be good, and as Wink already does, is listed related tags.
What about common tags for each item in the results from each service…this is extending the search to discovery…and/or common tags for the result set.
Since this is a human indexed web, what about being able to search full-text, the relevancy and ranking would be something similar to Google’s Page Rank with some of the TagRank thrown in
…the results would suggest looking in various tags, or see results in clusters.
This way we could have a human indexed web (less noise) that is searchable by full-text (relevancy/ranking a la PageRank and TagRank), or search via tag (relevancy/ranking according to TagRank)…like subject searching on an OPAC, as well as full-text searching.
So far the closest service has been Zniff, but this is just for the Spurl service…if all the services were combined this would be a powerful and cleaner search engine, that enables to limit search to a subject category.
Ohh, I forgot, there also has to be full-text search within a tag
…these refined results could again be based on a type of PageRank.
Speaking of refining, when you search for a tag, a list of intersecting tag could be available to refine your results, also boolean tag searching would be great…just check out Simpy for great searching features.
So who’s it gonna get into this risky game.
Imagine doing a link search on your blog domain to see which posts and how many times they have been bookmarked by the various services, and what tags people used to describe/file your various posts.
So the next time you search wouldn’t it be great to be able to choose the result set based on PageRank or TagRank.
[ADDED 22/02/06: rel8r]