Wasn't quite sure where to post this, since there's an old webcomic thread or two in Western Animation, but that didn't seem like a good fit, so I'm going general media.
Anywho, this post/thread is to plug a particular webcomic I've come to enjoy:
Home Page: http://www.sleeplessdomain.com
First Comic: http://www.sleeplessdomain.com/comic/chapter-1-cover
Sleepless Domain is a webcomic by Mary Cagle, who has also authored webcomics Kiwi Blitz and Let's Speak English.
The city is under constant attack by monsters. By day, a barrier keeps the city safe. At night, however, the barrier shuts down to reset and the city's main line of defense are Magical Girls who fight evil by moonlight.
Team Alchemical is a group of such girls. They have their problems, such as arguing over which of them should be leader, but are True Companions nonetheless. However, on one fateful night, tragedy befalls Team Alchemical and one member, "Alchemical Water" Undine, is determined to find out just what happened and why.
Even if that means she has to do it alone.
As that description implies, there's a "First-Episode Spoiler" at play. I'm making the effort to avoid it in the first post but I'm not expecting anyone discussing the comic later to go out of their way to do so.