I’d previously noted that you could earn 100 Miles&More points by submitting a hotel review via tripadvisor.in (and entering your Miles&More card number).
It seemed that this was just limited to one set of 100 points, however, as I wrote a few reviews through the link and only got 100 points added to my Miles&More account.
However, today I had the additional points for all my other reviews added to my account, so it does seem that you can earn an unlimited number of 100 points, per each review submitted via tripadvisor.in.
The link to submit your review is here. Do not forget to add your Miles&More card number in the box provided.
You’ll also notice from the link that if you submit 3 reviews by 31 March 2013, not only will you get 300 Miles&More points for doing so, you will also be entered into a draw in which 12 people will win 10,000 Miles&More points.