Mick Jagger and the Rolling Stones had it right when they sang, "Time Is on My Side." If you're looking to build up solid dividend income, time is on your side, too.Time is only one of the necessary ingredients, though. You'll also need money to invest regularly. And you'll need a good investment vehicle that pays attractive dividends. I think the Vanguard Energy ETF (VDE 0.54%) fits the bill nicely. Here's how investing $500 monthly in this Vanguard ETF could create nearly$5,700 in annual dividend income. ...