The Epi Guide website, mecca for creators of web serials, has a month-long writing marathon, very similar to the better-known National Novel Writing Month. Like "NaNoWriMo", the Web Series Writing Month is aimed at supercharging writer motivation and accomplishment, as well as increasing recognition or writers and participation in novel writing.
The "WeSeWriMo", however--coming this August--is for writers of online serials such as webTV shows, web-comics, and serial fiction. As with NaNoWriMo, this is an excellent chance for anybody thinking of jumping off an online writing project to get started, and for those who already have projects underway to increase output or accomplish other milestones of excellence.
Read about WeSeWriMo
here and be sure to take at look at the host site, the EPI GUIDE