My traffic from Yahoo! definitely compliments overall traffic, but it's all about Google, still, when it comes to SEs.
My main SE traffic-geared site stats follow.
Yahoo's up a slight bit this month, as I've noticed more of my pages from this particular site indexed in their directory.
But as you can see things still weigh heavily in favor of Google. Rankings on Google are higher for this site as well.
Be sure your stats designate a difference between search traffic and other traffic from a domain. Some stats programs consider all "MSN" and "Yahoo" domain traffic as SE traffic, whereas it could be traffic from MSN and Yahoo groups, email, etc.

May:
- Google 33273
- Yahoo 9804
- MSN 1306
- AOL 959
- Netscape 812
- Others 227
- Earth Link 216
- AltaVista 190
- Dogpile 150
- Seznam.cz 109

April:
- Google 41548
- Yahoo 8948
- MSN 1846
- Netscape 923
- AOL 907
- Others 381
- Earth Link 319
- Dogpile 205
- AltaVista 155
- Excite 128

March:
- Google 44687
- Yahoo 7978
- MSN 2022
- Netscape 1818
- AOL 944
- Earth Link 413
- Others 343
- Dogpile 134
- InfoSpace 114
- Excite 92