1. Social Marketing
These are the 3 in mind for me but also the video's is great to.What you will find in these areas of fiverr is people that are willing to make you video testimonials,get you back links,do ads holding a message of what ever you like including your site,make you a video intro and a lot more all at the price of 5 dollars.
The main point here it could be the cheapest service that you can use to gain traffic or a video that helps boost your site,product,service ect. ect.
Some even offer to get you more likes for your fan page which could come in handy when you make a new page to get your vanity url faster.
For 5 dollars would be the cheapest outsourcing ever that you can benefit from.Every gig has comments from recent buyers that gives them a thumbs up or down which you can see on top what their rating is.
You can also see a video on some of the gigs that you can check out what the seller offering to do.
Here Just A couple of videos you will see just to give you a idea and with their link to the gig to check them out.