Amazon Associates links disappear

Hi-
I’ve inserted Amazon Associates links successfully into my blog (pollinators.info), and they look normal on the site. But if I want to add anything to one of my pages, and I edit the page in “view” mode, my Amazon links disappear! This does not happen if I only edit the page in “HTML” mode, but I don’t know enough about HTML to do everything I want with it. Having to reinsert many links to books I’ve reviewed every time I look at the page is really frustrating. I emailed Amazon, and they blew me off. Any ideas would be really appreciated!