Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online.
In case of the latter, you will have to spend money on domain name and server hosting space that can cost you between Rs 3,000-Rs 5,000 a year. Self-hosted blogs have an added advantage that it allows you to customise elements and functionality of your website. In case of the former, you need to make peace with the tools and plug-ins made available by the service provider.
If you have pop-ups and optins on every page, I would have to think that it would be a lot harder to convince someone to link to it. Especially since the pages where you have your optins (and probably receive the most traffic) are probably the same pages that you have your best content on as well that you'd be hoping to pitch in your outreach campaign.