Its never crossed my mind to alert a provider to this. As a savvy business owner, she should be regularly checking on her reviews, reputation, etc. At the end of a session, I will often ask if she would like for me to review her on the appropriate sites, and I've never had a "no."

I usually let the lady know. If it was a particularly heated date, I will also let her look at it first. Just in case there is something mentioned that she doesn't do with everyone.

I let them know it has been approved and is posted. Occasionally they will let me know they found it before receiving my notice.

it would encourage the expectation that reviews be written to promote providers, not to inform mongers. Let her find it on her own.

I also ask at the end of a session if she's okay with me posting a review. A few have told me they'd rather not, even when they already had several excellent reviews. A few have also balked when I ask if they're sure about the explicitness TER reviews call for.

I don't want to kiss and tell against a provider's wises (ripoffs, etc. excepted), but I also believe in keeping some separation between reviewer and reviewed.

It's pretty obvious from my webstats when I get a new review (hello, random spike of a few hundred views!), but it's still nice to get a heads up.

EOM

but hold it for a few days.  Unless it is overwhelmingly possitive, some ladies can be upset.  Some are even offended by what I consider a great review.  
I'd let her find it on her own.