Well, it might become passive income once you get the blog established.  However, before that happens it is a lot of work to write content, promote your content and market your content, and check your page views in an obsessive-compulsive manner throughout the day.  Even then, you will likely need to continue writing content so that people continue to visit your blog.
Earning passive income is great but it can be tough in the beginning to see how amazing passive income is. Usually your contributions dwarf your passive income at first. This can make it seem like earning passive income isn’t worth while. But if you stick with it then all of a sudden it starts to snowball. After about 3-5 years your passive income will start to equal 1-2 months of regular contributions. This is where things really start to pick up speed! 

What is the best investment for monthly income?

If you know anything well, a place, how to fix something, how to make something, how to do something, you can write a guide for it. You can sell your guide as an e-book, offer it as a download for a fee on your site or reach out to bloggers with similar content and ask if they will offer it as a paid download on their website (for a price of course).

How long does it take to rank on Google?

This is a very impressive article! You’re one heck of a writer. My top month online from a drop shipping store was just under $500 USD. I have 3 stores now, but I just don’t have the motivation to keep working on them. I’m going to give Forex trading a try and maybe utilize some of the skills I have while being a student so I don’t have to work for anyone else.

What income is not taxable?

I’ve downloaded it and have had it for just over a year and my payout (by cheque, mailed to my home) has been $46.85.  The cheque comes very promptly.  I’d say it’s pretty passive.  In fact, I actually like going through my grocery receipts to check out if there’s anything I can claim with Checkout 51.  I know $46.85 is nothing to write home about but it’s still better than $0!!
I don’t look at Checkout 51 before I go grocery shopping.  I just do it after I grocery shop so that I don’t get influenced by their product coupons.  A lot of the coupons are for non-produce goods, but for certain things like diapers, it really saves money because I can stack my coupons (e.g. $2.00 print out coupon, and then another $3.00 from Checkout 51 for a total of $5 off the economy box of diapers).

passive income

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!
The credit card bonuses and offers are not as good as the credit cards that our neighbours down south have, but they are still pretty good!  One of my favourites is the MBNA Rewards World Elite Mastercard and it is owned by TD Bank.  It is a straight up 2% cash back on all purchases.  I got it for free annually because I was grandfathered from another card (this no longer exists).
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.
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The United States Internal Revenue Service categorizes income as active income, passive income, or portfolio income.[1] It defines passive income as only coming from two sources, or "passive activities": rental activity or "trade or business activities in which you do not materially participate."[2][3] Other financial and government institutions also recognize it as an income obtained as a result of capital growth or in relation to negative gearing. Passive income is usually taxable.

What is the best passive income?