Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
Note: I think the line where readers will push back probably will vary from blog to blog depending upon their readership. For example here on ProBlogger I get a little more negative feedback from readers on affiliate promotions. I suspect ProBlogger readers are a little more tuned into the issue and suspicious of some of the affiliate marketing that goes on around the web.
888.com is a premium gaming destination and a well established name in the casino and poker circuit. Its site offers numerous sub-brands including 888sport, 888ladies, 888bingo, 888casino and 888poker, as well as ReefClub Casino. The 888 family of companies attract millions of players, and the company provides affiliates with frequent promotions to keep players interested.
Learn then selling guidelines. Each marketplace has guidelines that define what you can and cannot sell. State and federal laws also impact what items are prohibited. In general, you cannot sell alcohol, weapons, service contracts, animals or event tickets. Also, while not always prohibited, you may find restrictions on how you can sell items in some categories, such as art, gift cards and coupons. eBay, Craigslist and Amazon publish these guidelines on their websites.
If you make a conscious effort to embed links within articles, you’ll get your visitors to the Amazon website helping you increase your Amazon affiliate earnings. Cha-ching! Or you can do the time-consuming task I did of writing product descriptions for a high volume of products so that you increase your odds of having your product pages found in search results.
Take it seriously. Yes, you’re applying for an online job. Yes, you can do the work in your underwear, but that doesn’t mean it’s not a “real job”. You must treat it as such or they aren’t going to treat you as a serious candidate. You aren’t the only one who wants to work in their underwear. In fact, the competition online is likely higher than it is in your local area.