[econ]

I never really use it but there is a lot in the Yahoo index that google refuses to index.

https://search.yahoo.com/search?p=blog.james-zhan.com&fr=yfp...

[guerrilla]

I thought Yahoo! was just Bing now. The real Yahoo! died ages ago.

[econ]

I don't know and don't doubt it but the results don't match. (For me at least)