Behance
https://www.behance.net/
Part of Adobe, Behance is the leading online platform to showcase & discover creative work. The Behance community features people from all over the world as well as completed original work and creative processes.
Dribble
https://dribbble.com/
Founded in 2009, Dribble helps design talent share, grow, and get hired by over 40,000 of the world’s most innovative brands. The site can be used for design inspiration, feedback or a boost to your portfolio no matter what kind of creative professional you are.
Artstation
https://www.artstation.com/
ArtStation has been providing artists with a platform to showcase their portfolio, find work and connect with opportunities since 2014. The site provides you with a simple, yet powerful way to show your portfolio and be seen by the right people in the industry. You can showcase high resolution images, videos, 3D scenes and more. There are also blog and online shop functions that enable you to share works in progress, articles and sell your digital products for sale.
CGSociety
https://cgsociety.org/
CGSociety is a global networking platform for creative digital artists. Launched in 2002, the site inspires, empowers, and engages artists of all levels by providing educational tools, a place to submit work, and search for the next great job as well as information on the latest events in the art community.
DeviantArt
https://www.deviantart.com/
DeviantArt is the biggest and probably the oldest online art gallery and community to date. Launched in early August 2000, the site gallery organises work into a category structure. This includes photography, digital art, traditional art, literature, filmmaking and skins for applications. The site also provides downloadable resources such as tutorials and stock photography along with journals, polls, groups, and portfolios.