MashOn is a website that allows you to upload your comics too. They host and display and also provide photo editing abilties and a comic creator type program.
Even though this site seems like the perfect place to do business, there rating is very low as the site as many bugs and costumer service/support is horrible. Peoples work also tends to dissapear without warning.
It is recommended that you find an alternative method. This article is mainly to catalog rather than endorse its use.