Those successful are allowed to pay an upfront fee to the seminar company, and agree to pay ongoing royalties based on sales.  

Royalties or Licensing Income – Royalties with mineral rights are great, but you need to own the land, not in a stock or bond.I could argue that Diversify is not necessary.

Buy ip license which i will be very fair, mostly royalty based, and I will feed enough to write that first content piece. 

The royalties are graduated, and the more deals you do, the more royalties fall.

Often folks don't sell all of the royalty or production but a fractional amount of it. 

Thank you for the reply @Dave Meyer, it's not everyday that I get to converse with BP Royalty. 

Our privately owned and centrally controlled monetary system, known as the Federal Reserve, and the legality of Fractional Reserve Banking is on a crash course for a battle between Freedom (Property Owners) and Royalty (the banks). 

Portfolio = Income derived from financial instruments like dividends (including REITs), interest, royalties, and capital gains.Mostly income w/out loss potential, and favorable tax rates.Cap losses may offset cap gains w up to $3,000 loss.

The contract I could find says the following:```...together with the right of ingress and egress at all times for the purpose of mining, drilling and exploring said land for oil, gas and other minerals, and removing the same therefrom.And said above described land being now under an oil and gas lease originally executed in favor of [Oil Company], Chicago and now held by [Oil Company] it is understood and agreed that this sale is made subject to said lease, but covers and includes of all the oil royalty and gas rental or royalty due and to be paid under the terms of said lease.It is agreed and understood that of the money rentals which may be paid to extend the term within which a well may be begun under the term of said lease is to be paid to the said [purchaser], and in the event that the said above described lease for any reason becomes cancelled or forfeited, then and in that event, the lease interest and all future rental on said land, for oil, gas and mineral privileges shall be owned jointly by [owner] and wife and [purchaser] each owning & interest in all oil, gas and other mineral in and upon said land, together with interest in all future rente.This sale is made for and in consideration of the sum of Ten Dollars, cash in hand paid, the receipt of which is hereby acknowledged.To have and to hold the above described property, together with all and singular the rights and appurtenances thereto in anywise belonging unto the said [owner] heirs and assigns forever, and we do hereby bind ourselves, heirs, executors and administrator to warrant and forever defend all and singular the said property unto the said [purchaser] heir and assignee against every person whomsoever lawfully claiming or to claim the same or any part thereof

Income from investment activities, such as rental income from real estate, is not business income, it is classified as investment income (rents and royalties), and therefore sheltering that income via a 401k is not possible.