For resources that have a lot of reviews, such as 

https://dev.nanohub.org/resources/612/reviews?action=addreview#reviewform 

it it not always clear that anything happens when the "Write a review" button is clicked, because the text 

entry box is at the very bottom of the long list of reviews, and requires a bit of scrolling to find.

I think that a more intuitive place to put the box would be at the top of the list, so that when you click on the button.

the text entry box shows up right in front of you.