Procter & Gamble did not offer any discounts or ask buyers to buy Old Spice, it just gave a suggestion and managed to catch the attention of consumers through the ad. Buyers might buy the Old Spice body wash without consciously realizing why they did so! The lesson is to be creative. Use social media channel to foster brand loyalty in an altogether new way.  
They also launched an incredible Retirement Planning Calculator that pulls in real data from your linked accounts to run a Monte Carlo simulation model to output the most likely results of your financial future. I strongly suggest you run your own numbers, play around with the income and expense variables, and see how you stack up. It’s all free and easy to use.
I’m hoping to have about 10g saved by this time next year, which I know is nothing huge but seeing as I’m at 2.5g right now and owned 3 dollars to my name on Aug.9 I’m pretty happy with my progress :). But at my age, without a stable career, while working part time and having to go to school full time, what is a realistic path I could pursue to create passive income online, or even income that requires effort such as writing, but one that is more flexible than working in a stationary low-paid position for 10 dollars an hour? I need to work for now to show taxable income for the government to get my residency, but after that I know my time could be better served than earning 8 dollars an hour, I’m just not sure where to go from here. I considered flipping domain names, or penny stocks, or sports gambling, but again that’s not passive income and in reality they are more or less just forms of me gambling.
If you’ve got a book you’re itching to write, you can still go with the traditional publishing route. (We published our first book using a traditional publisher.) Whether your book is fiction or non-fiction, a publisher can help get your book into print and onto shelves in both online and traditional book stores. This is still a good route, although it may take more work and be more expensive than some other options.
As a private lender, you can lend to anyone in your social circle. For example, many home rehabbers need access to a source of capital they can tap into very quickly in order to fund the initial purchase of their properties. You can partner with a rehabber who uses your capital for a short-term in exchange for an interest rate that is mutually agreed upon.
What happens if you have attrition in your customer base over time. An easy way to extend the model to take this into consideration would be to add a variable to model Attrition Rate as a percentage of the entire installed base at each cycle, and simply subract this from the total population at each cycle. This topic is nicely covered in this blog post by Andrew Chen: Is your website a leaky bucket? 4 scenarios for user retention.
Most forms of marketing, viral strategies among them, benefit greatly from research into the trends and habits of consumers. A market researcher reads existing consumer data and conducts original research to determine what consumers want and how to reach them. These tasks demand great attention to detail, computer literacy, and strong communication skills.

It isn’t easy to create a YouTube channel that is popular. If you’re not a funny person, don’t try to upload wacky videos – it won’t work. But you might find traction uploading quality how-to guides in your field. Because there is so much traffic, no field is too small. Creating videos on YouTube is also a really good way to add quality to your blog or website.
John Mackey, CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool's board of directors. Selena Maranjian owns shares of Amazon, Costco Wholesale, National Grid, Realty Income, and Verizon Communications. The Motley Fool owns shares of and recommends Amazon, eBay, National Grid, and Verizon Communications. The Motley Fool recommends Costco Wholesale, Lowe's, The TJX Companies, and Welltower. The Motley Fool has a disclosure policy.
People have a lot of stuff—and they’re always looking for inexpensive ways to store it. What could be easier than having people pay you to store their stuff? Building passive income by offering storage could involve a large-scale investment of buying a storage facility (with cash!) or something simpler like offering your basement or shed. You’ll just need to ensure their items are safe and secure.
The reason to make use or virality, the ease in spreading and sharing, is however a double-edged sword. We cannot forget that in this type of campaign, a large part of the control falls into the hands of the users, and we risk the message being misinterpreted or parodied. On the other hand, a successful viral campaign can work miracles for your brand’s results.