I'm unsure if this is something which has already been covered here but I thought it would be nice to bring it up again since new people might be interested.
Currently I'm in the process of writing a short story so I can make it into a comic to showcase my skills. I do have a comic online at the moment but since I update it rather frequently its a bit rushed at times and is more for fun and experimenting.
So my next question is what is the best way to go about publishing my new work? I've had a look at a few sites like archaia and slgcomic. Are these are good way to go? Has anyone here used sites like this before?
I've noticed there are a few of you with published work and it would be really interesting to learn about your process.
Ah, ok. Not being an artist in any sense, I'd go with whichever choice is going to let you do what you really want to with your art, is easy to use, and free/very, very cheap.
Just to clarify even more: Are you looking to publish traditionally or to self-publish?
The companies you are looking at (Archaia and SLG) are traditional publishers. They're both great companies that publish really wonderful comics; so if you're looking to publish traditionally, either one of them would be a fantastic choice. To be published by either one of them, you do have to go through a fairly stringent submissions process (outlined at their websites).
If you're looking to self-publish a short comic - something you can take to comic cons and sell/showcase at your website type of thing - then you probably want a Print-On-Demand Printer. You pay out of pocket and they print your comics. Some of the best ones I know of are Ka-Blam, Lulu.com, and Comixpress.
I haven't published in either of these capacities, but my caveat would be this: If you're self-publishing, do lots of research. I've seen beautiful self-published books and ones that barely registered an impression.