I think that'd be hard to navigate, as far as negotiating with the services you're re-selling. For one thing, they're services, not one-off purchases, so it requires an ongoing relationship. For another, lots of these companies' paths to profitability (well, actually selling out to a BigCo, but whatever) hinges on "owning" the user to steer them into future products, or, for the ones that aren't doing that, they'd have to fear getting edged out by other bundled services applying that tactic against their product.