Overture works for me about one time out of twelve attempts. My guess is that
the Overture servers are being continually hammered by scripts such as those sold
on this very forum.
Estibot (free version) seems to use old database... anyone know for sure?
For example, for the keyword "spitzer", estibot returns two results:
spitzer 3708 6320000 1
spitzer acura 99 354 2
while from Overture we get
2862 eliot spitzer
1650 elliot spitzer
885 spitzer for governor
547 spitzer dodge
456 eliot spitzer governor
445 spitzer space telescope
384 eliot fight rise spitzer spoiling
288 eliot inauguration spitzer
...
(etc., etc., etc.)
...
30 spitzer govenor
30 scott spitzer
29 constantine lloyd spitzer
28 elliot and spitzer and new york
28 george spitzer
28 spitzer jeep
28 manfred spitzer
3658 spitzer
(By the way, what is "Estibot Pro", and does it give up-to-date results?)