I posted a review this morning and it still has not posted. How long does it take to show up?

You should check the status of your review under Account Manager, they may have rejected it for some reason, and you'll have a chance to correct the review and resubmit it.  If you wait too long, it'll timeout and you won't be able to resubmit the review.

They generally get approved overnight. Used to take just a day, but the norm for my reviews has typically been 2-3 days this year.

especially if the gal has no prior reviews.

It's a "newbie reviews newbie" scenario.  It's my understanding they like one or the other to have some history.

You have 90 days to submit a review or revise it if they hold it up for "newbie reviewing newbie".  So don't give up if they don't approve it...  try again later.
Your posting history can help if you post or log in regularly.  
skb
(8 TER reviews)