Mint.com is convenient to have an overview of one's bank/brokerage/retirement accounts. Is there any similar website for frequent flyer miles?
I'm familiar with AwardWallet, which has both free and paid options, though I've never personally used it. As with Mint, you have to trust them with your data and account information, and there are some limitations, such as United, Delta, and Southwest not allowing them to access accounts (though you can forward your statements in for importing).
points.com is another option in this space.