For several years now, a common refrain among left-wing online political activists has been “We need to own the Internet the way the right owns talk radio.” Based on recent filings with the Federal Election Commission, it looks like the left has succeeded — with Democratic presidential candidates as the primary beneficiaries. Last fall in this space, I asked, “When will the right recognize the cost of conceding Web 2.0?” With that cost now readily apparent in the form of online campaign contributions for the 2008 presidential campaign cycle, the only remaining question is whether conservatives can do anything about...