I would say stock market, esp index funds.  As you get older, lower risk and ones w/ higher dividents.

Historically, these numbers on average will pan out the best...and lowest time invested.  Obviously, it's better to start this when you are in your 20's.  Time is your friend.  I did some in my 20's (wish I had done more) and a lot on my 30's.

I've been trying to get my mom re-married to a wealthy guy she met in her retirement community. I am starting to call him "Daddy".

i still like real estate, but not sure how passive it might be. i would invest mine in hard money lenders, who are very local and who do residential and small commercial lending. but thats me

I use professonals to manage our retirement funds rather than trying to personally outsmart the market. I use Wetherby Asset Management in San Francisco.

Time travel would be the best investment, if only for a day!

Adoption by my new wealthy parents.   Taking applications now.  Please no Craigslist ads.  

John,

We have seen people invest in True Triple Net buildings, like Home Depot, Costco, etc.  Guaranteed income (as much as that is worth) and no maintenance.  A

I invest in myself: classes, training, improved skills, etc; so I can earn a better living and diversify my value to the market place. Then take that extra income and I invest in what I know; buy & hold real estate. I let my tenants pay my mortgage and in part, build on my future.

Forestland.

John,

A good real estate option is to own the land and building that has a tenant like a Dollar General store. Simple, safe return.

Depends on how passive you want to be John, I work too hard for my money to let it be passive.

If I where to get into any stocks though, I think that oil and gas will be doing very well with the next group in Washington.

Rental property and that can mean just a single home rented out. Works better than Social Security does when paid off

Stocks have very high volatility rates; you would need a rather conservative fund, but the returns might be low. Being from a credit background, I like bonds and as you get much older, a higher cash component can't hurt (can't lose your principal!).

It really depends on the size of the chunk you intend to invest.

Before you do anything, create a self-directed IRA through which your investments will be purchased and held.

Clearly, Clearly, Clearly, the easiest passive income in the real estate area is create a lead generation engine. It is your choice of you sell the lead or refer the lead..(agents will buy anything)... or sell designations to real estate agents.

Prowl the start up collectives for a solution that will align with your awareness. There are several that simply waiting for $$ to create a real website.

Mobile home parks and storage facilities are cash cows.

And the hard money lending route is incredibly attractive or even transaction funding. However, if you treat these too passively, your $$$ could go bye-bye.

With what you have read in all these responses, go now to the last section of the Danger Report and review the disruptions that are coming. These disruptions will create opportunities that should not be included in your passive income strategy. The report, in the same section, suggests a coming need that a passive income option would be perfect. Create the course, place it online.

Create affiliate options. Have someone blog about it. Go on vacation.

I control my own; and spend an hour each day going over it to see if I will make any changes.

A Psychic if they were phenomenal or find another Haloid to buy!

John DL Arendsen Stock Market would be #1.  Buying property in the UK in the 1960s and selling it 40 years later for 100 times the purchase price would be #2!