im very uncomfortable with either party selling out to institutional investors (im willing to expand the scope to include entities other than businesses...and 'contributors' is inaccurate when there's a quid pro quo involved). having said that, i dont believe moveon.org controls the democrats any more than swiftboatvets controls the republicans--the problem arises when it's the other way around and they provide a fifth column.
the democrats at the wheel could do worse than to focus on richard viguerie, karl rove and other republican strategists/operatives with career roots in the direct mail advertising industry who use skills and techniques they developed there to the distinct advantage of their party.
one more thought: call me paranoid, but could there be more than just altruism motivating republicans who've been so generously offering unsolicited advice and analysis purporting to help democrats correct the error of their elitist, outta touch ways?