What about Fiverr or Craig's List?
I'd be leery of craigslist. Don't know much about Fiverr.
I've gotten short term gigs, like mock jury duty or legitimate surveys where I go to a company and give my opinion on software they are working on. You get paid, $25, $50 or $100 for an hour, or up to 4 hours work.
Most of the gigs on craigslist are from uber, or more like ads for "models" or someone to come over and clean your house naked, or clean it while the customer sits around naked.
I scan past at least 95% of the gigs.
As far as the part time or Etc. section, it depends on what your goal is.
Don't count your chickens before they hatch.
A couple of weeks ago I thought I fell into something perfect. This woman who lived close to me also sells on ebay, and her business was to the point where she had to hire someone to help so she could concentrate on growing.
3 hours 3 or 4 times a week to take photos of her merchandise, post, wrap and ship etc.
Just because I sell on ebay too doesn't mean I'd steal her idea. She sold something I have no interest in, and she had no interest in what I sold, so it was all good.
She'd been doing it seriously for about a year, and it took her that long to get to a point where she was able to afford to put her 2 year old twins in daycare for the morning while she did her thing, and was renting storage space for her products.
Then of course, she got a phone call from someone who she used to work with, who wanted her to come join him in something she was good at. She was very apologetic to me, but there was no need to be. I was happy for her. It would have been bad for me if I was counting of this extra $4 or 5 hundred a month. So now she's just going to keep what she already has up for sale (she had approx 1,400 different items listed.) and sell them off. If this new thing she's doing doesn't work, maybe I'll get a call back. We really clicked and she had a really cute doggie.
BTW, when I posted I said I was netting $300 a month? Now that's up to $500 net a month. It might not seem like a lot to some, but considering the few hours I do this, it's great. So from $15 or $20 to $500 in just a year. Believe me, I "wasted" quite a few 3 hours here and there investigating stuff too. But, I looked at it that I was learning about so many aspects of trade.
I don't see the problem with telling people what I do, if I don't get too specific re my individual products or service.