I’m not sure how long Mint.com has had this feature but I just noticed it today. Now you can add assets like real estate, vehicles and any other valuable assets you have. You can even associate an asset (like a house) with a particular loan so that it calculates your equity in that asset.
I found these features by clicking on the “Your Accounts” link in the upper right hand corner of the site once I was logged in. They do have a feature where you can plug your address in and it will go out to a third party to get a current value estimate, although that didn’t work for me. I ended up manually putting my values in based on a conservative method I’ve used for calculating values.
Anyway, if you are a Mint user, go check it out. If you aren’t a Mint user, you might want to check it out. I’m thrilled with the app.