I made it hoping that sites like HN would use it because it's just a simple copy-paste operation. Making a good search engine is not easy and even reddit which has its own search gets a lot of flak for poor results. I've tested this for many sites and it works pretty well, considering that it's just Google results with a filter for "site:foo.com." The fact that it's ajax makes it easy to try out different keywords quickly.
If anyone has suggestions on improving or extending this library, I'm all ears.
It's a nice tool. Describing it as 'like Google Suggest' is probably misleading, in my view, since it doesn't make suggestions based on search tracking like Google does. It reminds me of the Inquisitor plugin of Safari: http://www.inquisitorx.com/safari/index_en.php
I think that showing immediate results is still a very useful property, and maybe even more useful than the suggestions. I often search obscure stuff, so Google Suggest is fairly worthless for me.
If anyone has suggestions on improving or extending this library, I'm all ears.