Which all goes back to my point – since companies change in a lot of unpredictable ways, it makes more sense for passive income to just ride the market by investing in a Total Domestic Stock Market, Total Bond Market, and Total International index funds, with allocations that depend on your goals and time horizon. For income, withdraw 4% or less, depending on what research you believe, and you’ve got a pretty low risk strategy.
There are three main categories of income: active income, passive income and portfolio income. Passive income has been a relatively loosely used term in recent years. Colloquially, it’s been used to define money being earned regularly with little or no effort on the part of the person receiving it. Popular types of passive income include real estate, peer-to-peer (P2P) lending and dividend stocks. Proponents of earning passive income tend to be boosters of a work-from-home and be-your-own-boss professional lifestyle. The type of earnings people usually associate with this are gains on stocks, interest, retirement pay, lottery winnings, online work and capital gains. 
Consider withdrawing sufficient corporate funds to maximize your RRSP and TFSA contributions, rather than leaving the funds inside the corporation for investment. Given sufficient time, RRSP and TFSA investing would generally outperform corporate investing when earnings come from interest, eligible dividends, annual capital gains, or a balanced portfolio. And removing funds that would otherwise be invested within the corporation could reduce future AAII.
Sharon, you missed my point completely. If you feel you need $8000/month to live the life you want, and you get that $8000/month through passive income, you may feel financially free for a few months. However, next year, you’re not going to be wanting $8000/month + 3% inflation; you’re going to be wanting $16,000/month. This is greed 101. It’s normal. It’s natural.
The average period of customer use of the property, as figured in (1) above, is 30 days or less and you provide significant personal services with the rentals. Significant personal services include only services performed by individuals. To determine if personal services are significant, all relevant facts and circumstances are taken into consideration, including the frequency of the services, the type and amount of labor required to perform the services, and the value of the services relative to the amount charged for use of the property. Significant personal services don’t include the following.
If a closely held corporation is actively engaged in equipment leasing, the equipment leasing is treated as a separate activity not covered by the at-risk rules. A closely held corporation is actively engaged in equipment leasing if 50% or more of its gross receipts for the tax year are from equipment leasing. Equipment leasing means the leasing, purchasing, servicing, and selling of equipment that’s section 1245 property.

The at-risk rules limit your losses from most activities to your amount at risk in the activity. You treat any loss that’s disallowed because of the at-risk limits as a deduction from the same activity in the next tax year. If your losses from an at-risk activity are allowed, they’re subject to recapture in later years if your amount at risk is reduced below zero.
Investing in bonds: Similarly, bonds are an attractive way to engage in passive income. Over a recent 45-year period, bonds funds, as measured by Vanguard Funds, returned 7.1%. Of course, there's no guarantee that investments in stocks or bonds will always work out well, investing in them is by far the surest way to generate money through passive income.
I actually spent a year and a half working as an affiliate marketer (mostly selling drumming related products – lessons, kits ect). 5 years on and one of my one page sites (which I’ve not touched) still nets me about $150 a month. I won’t be retiring off that but only really now appreciate the reverse pyramid approach to entrepreneurship (working for nothing initially but later being paid without effort!)
Wow! What an awesome list! My favorite is the stock photography because I love photography. I have had some success there, particularly with one photo I make some decent income from. I think the key with stock photography is finding a shot that is high demand. Then, find a new unique way to frame that shot. This is the reason my St. Louis Arch photo is a top 10 on both ShutterStock and iStockPhoto. Thanks for the awesome ideas above!