Also, in the name of speeding things up, instead of calling for rolls I tend to just make rolls for the characters (as I have just done). This, along with anticipating rolls, can help keep a play by post game moving quickly (for a play by post game). I'd rather keep our attention collectively on the story and action instead of waiting 2-3 days to collect initiative rolls :)
Also, if you're ever unsure about whether an action may or may not require a skill roll of some kind, you can just include a plain d20 roll and if it is a skill roll, I'll look up the appropriate skill on your sheet and add the modifier (one thing I do love about this site is that I can access your character sheets from your name as long as you post as character -- which you all have been).