Ask HN: Who does your corporate taxes?

I attempted to do taxes for my startup C corp over the weekend. I figured it would be easy since I just started and only had one check and a few expenses, but even using tax software, I kept running into questions I had to look up what they meant. I'm pretty familiar with tax law for personal taxes, but the C corp just stumped me.

So what do most people use? Is there a good online accounting/taxes service that I just can't find, or does everyone just have a local person that they trust?