This is a platform website which gives you a free URL and membership into a creative network depending if you are accepted upon work submission. The templates and webs design software they offer seems to be really good especially if you dont know how to design a website with dream weaver.
2) Tumblr
Tumblr is just a standard blog site but gives you a lot of freedom by allowing you to edit it through html. Its also a free site to use, good to just kind of put up final pieces of work to showcase or link studio's to see. As it is a blog it allows it to be slightly more casual as well.
3) Behance
This is another professional creative platform kind of like Cargo but more open. Its free to sign up for and it lays out your work very simply. The one problem i kind of have with it is that people kind of rip work off from behance all the time, so im not sure if i want to showcase my work on this website if it is only to show studio's.