*nods* if you do it well, the search engines will help send you more players too - be sure to use as many of the proper keywords as you can, and tell ALL. As a fellow builder, I cannot stress that too much. Many of us know our module so well we omit details others would to "wow, that's cool!" over.
The thing to do is to try to forget everything you know about your module, the write from that perspective. Very hard to do but I'm sure you'll work it out. Also, it helps much to have those who know NOTHING about nwn read your text to see if they understand what you are writing. If not, simplify the text even more on the next draft.
I like to use a writing style that is close to 'ad copy' when I do this, punch up the features with powerful verbiage.
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Best of luck!