Yes they certainly do accept them. Easiest way to figure out is to search Ezine using keywords in question
Yes,why not. Here are hundreds of articles containing the word windows in their titles http://www.google.co.in/search?q=si...s=org.mozilla:en-US:official&client=firefox-a
You can put a disclaimer like "No affiliation, no endorsement.." as long as you do not cause confusion as for the source of goods, you will be fine.