Krugle is the best. One thing about koders you state that "A neat interface on the main page" which is true but after that page its a complete mess especially on the code page. Good work.
Its because Steve Jobs is smart enough not be in this business. I remember in his speech with Bill Gates, he said he rather build partnership with established business then build/acquire/compete with one. And yahoo no matter whom acquire them cannot give the search to google for the reason that google has monopoly on this one. It will dumb for apple to acquire yahoo coz apple remains to be a hardware company just build with software. All the apple stuff had to have apple hardware and yahoo is not hardware material.