Just like other advertising services, you need traffic. You need to show your presence on social media and in search engines. You need to get targeted traffic and buying traffic won’t help you much. Search Engine traffic is considered highly targeted and you will have to go through search engine practices and optimization practices and market your blog. If your blog is discovered in search engine, that will itself prove that your blog is related to the search query.
2nd tier. If you are an affiliate for a particular program and you refer others to sign up for that affiliate program, a 2nd tier program will pay you when the affiliates you referred make sales. For example, I am an affiliate for Ultimate Bundles. If you join their affiliate program via my 2nd tier affiliate link here. I will get a small percentage of any sales you make going forward.
Rather than letting as many partners into your program as possible, evaluate your partners for quality. You want to ensure their efforts are brand-aligned and delivering the outcomes you want. Focusing on a select group of partners can have a positive impact on the experience your affiliates have and your program’s conversion rate. Having quality partners is much better than managing fraudulent issues with partners on a regular basis.
The frequency and method of payment vary as well. Most programs pay their affiliates monthly, although a few pay more frequently. Some require that affiliate earnings reach a specific threshold, which can be as low as $25 or as high as $100. Some programs don't have a threshold. There are programs that pay through direct deposit into your bank, but a vast number pay through PayPal.
High ranking metrics will result in getting your site on the top position of several charts such as Top Alexa sites, Top WOT sites and so more. People usually go through these lists to discover new sites and hence you will be getting referral traffic as well. Who knows? Some of those traffic may be your next big client or loyal reader of your blog.