1. The batting cage idea is very risky. I’ve seen many of them close over the years and it is not anything close to passive income if you want to keep the business going. You have to continually promote it and target youth leagues, coaches, schools etc to catch all of the new players who grow up and want to play. I’ve played at probably 8 batting cages over the years and 7 of them closed.

Takes advantage of other resources. The most creative viral marketing plans use other resources to get the word out. Affiliate programs, for example, place text or graphic links on other websites. Authors who give away free articles, seek to position their articles on other web pages. A news release can be picked up by hundreds of periodicals and form the basis of articles seen by hundreds of thousands of readers. Now someone else’s newsprint or web page is relaying your marketing message. Someone else’s resources are depleted rather than your own.

To save time and effort, a person can group two or more of their passive activities into one larger activity, provided they form an "appropriate economic unit." When a taxpayer does this, instead of having to provide material participation in multiple activities, they only have to provide it for the activity as a whole. In addition, if a person includes multiple activities into one group and has to dispose of one of those activities, they’ve only done away with part of a larger activity as opposed to all of a smaller one. 

What I’m doing: I use this site to write out goals like 1) Generating $200,000 a year working 4 hours a day or less, 2) Trying to make winning investments, and 3) Keeping track of my passive income streams with free financial tools. My site and the community helps keep me accountable for progress. It’s important I do what I say, otherwise, what the hell is the point? You should consider starting a site or at least a private journal. Write out your specific goals, tell several close friends and stick to the plan.
Many marketers hope for a campaign to go viral — meaning it's recognized, widely-accepted, and influential. But there's no guaranteed formula. However, if you think about some of your favorite viral marketing campaigns, you'll notice some common features. Marketers wanting to reach a bigger audience should keep these attributes in mind when creating their next campaign:

One great way to generate a passive income is through affiliate marketing. Now, this does depend on the size of your list. Yes, size matters when it comes to your list. Especially if you're looking to make some serious money and do it on autopilot. But, list-building takes time. It doesn't happen overnight. And you need to add value to your list or you become obsolete.
Whether you choose to invest in just one of these modern REITs or both, keep in mind that since they’re private funds and not stocks, you won’t be able to easily liquidate your investment and access your cash right away. Depending on your investment, plan to see your money tied up for anywhere from six months to five years. However, you’ll most likely still receive monthly or quarterly payments, depending on which investment opportunity you select.
Hi, it’s probably been brought up before, but the statement “you can’t touch pre-tax retirement accounts without a penalty until 59.5” is incorrect. You can touch the traditional 401k accounts with a SEPP (substantially equal payment plan), and not pay the 10 percent penalty. You can also touch a Roth without the 10 penalty using the same strategy, although I understand you will pay taxes so you lose the Roth’s advantage. When I found this out, I stopped contributing to Roths because I wanted to retire early. Who knows if they will even live to age 59.5? So many people don’t!
Look at products such as Hotmail, Facebook, YouTube, Gmail, Snapchat, dating websites, and Craigslist. They all have one thing in common: they are products that went viral. These are the ideal viral marketing opportunities as these products get better when more people use them. I don’t to discuss these properly, but it’s essential to know that they exist for a complete view of viral marketing.
On-demand: More than a decade after “The Blair Witch Project” and its viral-before-viral-was-a-thing campaign, the producers of “Paranormal Activity,” who made their 2007 film for about $15,000, invited those interested in the film to demand their local theaters show the movie. The result? A wide, nationwide release and more than $107 million in box office revenue in the U.S. alone. (2, 3)
Not everyone is eager to do this, but consider renting out space in your home for extra income. You could take in a full-time boarder, for example, but you needn't be that extreme. Instead, consider renting out an extra room via a service such as airbnb.com or homewaway.com. If you do so for just 20 nights a year and charge $100 per night, that's $2,000 in pre-tax income! If your home is in a desirable spot, maybe you can rent out the whole house for just two weeks in the summer, charging $2,000 per week and collecting $4,000.
Marketers and agencies commonly consider celebrities as a good influencer with endorsement work. This conception is similar to celebrity marketing. Based on a survey, 69% of company marketing department and 74% of agencies are currently working with celebrities in the UK. The celebrity types come along with their working environment. Traditional celebrities are considered as singles, dancers, actors or models. These types of public characters are continuing to be the most commonly used by company marketers. The survey found that 4 in 10 company having worked with these traditional celebrities in the prior year. However, people these years are spending more time on social media rather than traditional media such as TV. The researchers also claim that customers are not firmly believed celebrities are effectively influential.[43][44]
To give you a preview of this post, what you will learn is that there are two key parameters that drive how viral growth happens, the Viral Coefficient, and the Viral Cycle Time. To fully illustrate the arguments, I have included two spreadsheet models (embedded) that you can play with interactively to see how viral growth works. There is a risk with this level of depth, that some readers will find this too technical, and if you find yourself reacting that way, may I recommend that you jump straight to the conclusion, which is under the heading Lessons Learned towards the bottom of the article.
There is debate on the origination and the popularization of the specific term viral marketing, though some of the earliest uses of the current term are attributed to the Harvard Business School graduate Tim Draper and faculty member Jeffrey Rayport. The term was later popularized by Rayport in the 1996 Fast Company article "The Virus of Marketing",[12] and Tim Draper and Steve Jurvetson of the venture capital firm Draper Fisher Jurvetson in 1997 to describe Hotmail's practice of appending advertising to outgoing mail from their users.[13] An earlier attestation of the term is found in PC User magazine in 1989, but with a somewhat differing meaning.[14][15]