Google is too big, and supports too many things, to not in have in some way contributed money to just about everything. Relax and put down thy pitchfork, SOPA hurts them in many ways and they do not want it. If we want to make it a big PR fiasco like like we did for Go Daddy, whom i think the internet was just looking for an excuse to hurt, then we can but why? Bad target, not worth the effort, no efficacy. Right not…
It's not uncommon for large companies to contribute to candidates across the board - even (or especially) to the two presidential candidates (both Dem and GOP). In a world (or country) where corporations and money have a large impact on policy, it'd be foolish for them not to. (You can say that this reflects poorly on the US political system, but it's not Google's job to change that).
On a separate note, I know that some candidates set up 501(c) 3s and -4s before they officially start running, and Google matches charitable contributions from its employees. Does anybody know if those types of funds (or funds donated through another organization) are included in these totals? It may not be the case, but on the off-chance it is, then this would just be a byproduct of the employees' own contributions.