we have seen many approaches in the last decade, but the basic concept of a search engine has not really changed, the interface nowadays is almost the same as it was at the beginning.

so what makes a search engine good? it is the size of its index. are google results really more relevant than yahoo or msn results? i don’t think so, but usually google will deliver more results.

in the near future, will anybody else be able to build a bigger index than google? i don’t think so…

so, what you say is a bad thing, google’s size, is actually what makes google so good.

i think what will happen is the way how we retrieve information in general will change, i see myself turning to google less and less often, because i don’t need to search for information in there, information is delivered to me instead, through blog subscriptions, rss feeds, and through twitter.

google already understood, thats why they came up with their social graph api.

concerns about privacy, well, than this world of social networks must be a very scary place for you, there is not too much room for privacy i guess.

personally i don’t care to much about this, because how can all this information be used against me? well, it will be used to market products or services, it will be used to deliver very targeted advertising.

and very, very targeted advertising is not advertising anymore - it becomes information. i am fine with that.