Whether or not you believe there's a glut of personal finance sites online, two big companies seem to think there's room for one more. Dow Jones (NYSE:DJ) and IAC/InterActiveCorp (NASDAQ:IACI) are teaming up to create a new community-driven destination for investors, budgeters, and just about anyone weighing a financial decision.

It may seem redundant at first. Dow Jones runs active websites behind its Barron's and The Wall Street Journal publications, as well as its MarketWatch.com acquisition. Meanwhile, IAC/InterActiveCorp is known less for finance than for Ask.com, Ticketmaster, and the Home Shopping Network.

Is this a romantic pairing along the lines of Julia Roberts with Lyle Lovett? Can good looks and a great singing voice be a match made in heaven, despite the cosmetic disparity? Let me tell you why it can.

The unlikely, interlocking beauty of Dow Jones and IAC
The pieces fit together a lot better than you may think. Consider these lesser-known IAC properties:

  • RealEstate.com: A suite of resources for home sellers and prospective buyers.
  • LendingTree: The popular lead-generating service for lenders.
  • HomeLoanCenter.com: Similar to Lending Tree, but with a mortgage focus.
  • Interval International: A timeshare exchange service with more than 1.8 million members.

The IAC portfolio goes even deeper than that, comprising additional consumer-geared realty sites at Domania and iNest.com. Swapping timeshare weeks with fellow vacationers is a short skip away from IAC's ReserveAmerica campsite-booking specialist, not to mention its locally empowered Citysearch.com listings.

The site will naturally have a Wall Street investing flavor. Dave Kansas, who has headed up the editorial departments of WSJ.com and TheStreet.com (NASDAQ:TSCM), is the president of the new venture. You don't waste that talent on telling folks which destination club offers the best cliffside Caribbean beach house.

However, the real monetizing payoff of the new venture will be to take a more general personal-finance bent and use that magnetism to funnel info-hungry visitors into IAC's various other sites. A little more Suze Orman, a little less Jim Cramer.

If it breeds, it leads
Giving lead-generating sites a content backbone isn't new. The master in that regard may be Bankrate (NASDAQ:RATE). How many times have you come across mortgage-rate listings, borrowing-trend reports, or Bankrate-scribed articles on fixed-income investing, each serving as an ambassador for the Bankrate brand? Plenty, right?

Generating traffic doesn't come cheap in the financial space. Just check with Yahoo! (NASDAQ:YHOO) and Google (NASDAQ:GOOG) to see what advertisers are willing to pay for clickthroughs to sites that specialize in loan origination, discount brokerages, or insurance products. Is it any wonder that Yahoo! and Google have made recent initiatives to boost the attractiveness of their financial portals?

A company like InsWeb (NASDAQ:INSW) seems to be perpetually bleeding through its piggy bank. It generates leads for the insurance industry, but it's struggling with the high costs of attracting traffic in its cash-deflating arbitrage. Bankrate is doing so much better because it's an oasis of syndicated content -- an excellent catalyst for free, organic traffic.

Think different, invest differently
Maybe I'm wrong. Maybe this will be little more than Dow Jones content, recycled and repurposed in a flashy IAC wrapper. Lyle awkwardly kisses Julia. The relationship is disbanded in a few years, with little to show for it.

Don't bet on it failing, though. IAC has its own organic spigot of eyeballs. You see it in the 40-year-olds hitting Ticketmaster to land concert tickets for The Police this summer, the newlywed couple trying to make sense of the nightclub scene in Orange County through Citysearch, or the university coed loading up IAC's CollegeHumor.com to see videos of practical jokes from last week's fraternity kegger.

None of these folks realize they're prime candidates for personal finance-ification. You may want to tackle some of that credit card debt before forking over $150 to see Sting, Andy, and Stewart. Maybe you're feeling out of place in Southern California because you should really be moving back to Indiana. And don't even get me started on the gravity of those college tuition loans!

Dow Jones and IAC have real potential here, among a market that doesn't realize how badly it could use a little financial enlightenment. I'm betting that's where this new venture will strike pay dirt, even if it starts digging in the wrong holes.

Friday's press release was loaded with all the right buzzwords, like "social media" and "community-driven," but who are we kidding here? That isn't bringing anything new to the table. Here at The Motley Fool, we've been doing just that for a dozen years now. The value of this deal will come from the pairing itself. It seems so unlikely on the surface, but it's so perfectly interlocking and genre-broadening once you start digging.

Lyle and Julia pale in comparison to this matchup, my friends.

The Motley Fool also offers a personal-finance newsletter -- Motley Fool Green Light -- full of money-saving tips and useful information. March's issue included information on opening an IRA account and the best investments for IRAs and other tax-favored vehicles. Try a free 30-day trial today.

Yahoo! is a recommendation for Motley Fool Stock Advisor subscribers. Bankrate is a Rule Breakers stock pick.

Longtime Fool contributor Rick Munarriz does not own shares in any of the companies mentioned in this story, though he has been a frequent freelance contributor to IAC's CitySearch. He is also part of the Rule Breakers newsletter research team, seeking out tomorrow's ultimate growth stocks a day early. The Fool has a disclosure policy.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.