When you're searching for a content aggregator, you're pretty much admitting that you're at the end of the life of your film. The theatrical and home video market has been milked to death or is simply non-existant for your film.
From what I've been taught, Netflix don't deal with individuals to buy movies, they only buy them in packages, hence the aggregators. Aggregators put together a package of movies (about 10 to 20 movies per package) that companies like Netflix, Huluu, tv networks etc... buy. Though I haven't seen or heard much about your animated film, the truth of the matter is that you're unlikely to see much money from this, even if you do broker a deal.
There are other aggregators that can also get your film on networks like iTunes and other PPV networks. They usually charge an entry fee and take a percentage on top of that (30-40% can be common).
When talking with an aggregator, it's important to know what you're locking yourself into, particularly in terms of territory, release windows and length of terms and whether each is exclusive or not. It's also worth working out how far their reach are. For instance, If they've only ever done new media releases, there's no reason to also give them home video in foreign or domestic markets. Just food for thought.
It'll help if you learn how distribution works, what they mean when they use particular terms, what questions to ask, what terms you need in your contracts etc... so you don't get screwed. I gather distribution is now about as clear as mud, right?
Good luck!