Will it be possible to set up Chrome (with a custom search engine, a userscript, or an extension) so that when I type "angelman s" on the Omnibox, it will suggest "angelman syndrome" and go right away to http://en.wikipedia.org/wiki/Angelman_syndrome (the first result for such a search)?
Otherwise, will it be possible to set up Chrome so that default omnibar searches are "I'm Feeling Lucky" searches? That is, typing "fb [enter]" will take me to http://www.facebook.com/ .
Download and install the Google SSL search extension and click Add as Search Engine (or whatever it's called).
When the box comes up, immediately before the part that says &q=, add &btnI. Now add the search engine, and it will search I'm Feeling Lucky on Google SSL.
If you also add &gnfs, it wil only take to to the website if the results are "good enough". Otherwise, it just shows you search results! :)
In the end, mine looks like this:
https://encrypted.google.com/search?{google:RLZ}{google:acceptedSuggestion}{google:originalQueryForSuggestion}sourceid=chrome&ie={inputEncoding}&btnI&gnfs&q=%s
It's probably the easiest way. You can't modify the built-in Google search engine, so adding a new one is much easier.
Chrome has this feature that allows you to derectly search search any site you want, such as wikipedia or youtube. The only thing you have to do is to visit the website once (ie. wikipedia.org) do a search and next time you want to do another search on wiki you just start typing w or wi,press TAB and then start typing your actual search.
The same suggestions will appear but the searchg will be done directly on wikipedia.
Point #1 is possible, provided you've visited it befor. You'll have to enable it from Options.
If you haven't visited before, that's not possible. As for #2 that's not possible either have a look at @Merhdad's answer.
