Presumably, you are in college to acquire the skills, thinking processes, and connections that will provide you with a career that requires brain power. That said, I would not panic if you aren't doing exactly what you want to do right now.
While I applaud you for wanting to make more money in a shorter frame of time, I would caution against assuming that all "regular" student jobs are somehow beneath you. At the risk of sounding harsh, not everything you do needs to be special and fun and unique. Many of us have had to do "drone work" to make a few extra bucks while we set ourselves up for something better. And there will probably be "drone work" aspects to any job you have, even ones you overall like. There's something to be said for the skills and maturity you can gain working a regular retail or serving job while attending college, even if it's just learning how to deal with other people or solve problems in a day-to-day setting. Plus regular employment generally looks good on your resume when you graduate, as opposed to strings of short-term gigs.
To answer your questions more specifically:
-I would avoid survey websites and other get-rich-quick-type schemes. I've tried a few and typically the time investment isn't worth it.
-I personally would not advise paper writing or other sketchy schemes, just because I don't think the risk of getting caught (in most universities, automatic expulsion) is worth the pay compared to a legitimate job. And it's not exactly something that goes on your resume.
-You could monetize a blog, but my understanding is that it takes a fair amount of up-front legwork with creating content that will drive the traffic you need to make any money off of this. Most big bloggers seem to have spent years writing before their blogs really started making money, which sounds like it isn't what you're looking for.
-If you're good with people, some commission sales jobs can be fairly lucrative. Micro Center and Carmax are both options I've had friends do, and both made more money than they would have, say, delivering pizzas.
-Participating in studies isn't something I'd count on as a full-time gig, but it can help you make a few hundred bucks here and there. Which, if you invest it wisely, does add up. Look at nearby medical centers and websites like researchmatch.org.
- Internships. If you haven't had one, find one. Paid, preferably. But even unpaid, if it will provide you with legitimately helpful skills and connections that could lead to higher paying jobs in the near future. I took an unpaid internship for 3 quarters my first year in undergrad, but it allowed me to take on higher-paying jobs that required experience for the rest of undergrad. Not an awful deal, all told. Just avoid the internships that are basically unpaid shitwork jobs- that's where you should legitimately be picky about what you're doing.
- +1 on the freelancer sites like odesk if you have a skill that someone might pay for, or check out tutoring websites to see if there's anything you might be qualified to tutor.
-Check out the "gigs" listing of Craigslist from time-to-time. Sometimes somebody will pay you to move their furniture on short notice, not something you could likely live off of but another source of extra cash.
In undergrad I generally tried to separate my "real job" from my "side gigs". My real job had a fair amount of drone work involved, but it was a regular thing and it led to acquiring some skills plus a glowing letter of recommendation from my boss. My side gigs provided extra cash but usually weren't anything too resume-worthy unless I built up a skill for them (to some extent, tutoring was the exception). Personally, I think it's important to have a bit of both going on.