My style varies based on a lot of factors. Be it inspiration, situation, or just the mood I am in I can be either incredibly descriptive with an artistic flow, or I can be something entirely different. It changes. Typically I will either put a little more concentration on either dialogue, or other descriptions based on the character. A more quiet character will be more stressed in description than a talkative character. A talkative character will have more stress put on witty and interesting dialogue.
I prefer to write in "storybook" style as I feel it allows me to bring much more to a character and a scene. My "storybook" style is always written in third person, past tense. I prefer writing with someone who's style matches my own in tense and POV.
I can either thread or roleplay on AIM. My preference is for AIM but sometimes threading works out better due to time constraints.
Character journals are updated on a fairly regular basis, typically once or twice a week, sometimes more. I usually update my character's journal as I would my own: a basic entry detailing the recent events in their life. Occasionally I will post a third person entry in order to work on character development or storytelling or something of that nature. Third person entries will have comments disabled.
For an example of my writing style please see the two entries below.