There aren't really any hacks--it is a dedicated ebook reader, not a tablet. You can fudge a bit and make the reader connect to a webpage, but it's a pain and does not persist. There is a thread in the kobo forum about connecting to wikipedia.
The one thing you might want to do is use the kobobooks.com desktop application, rather than the Borders one. You can only sync with one or the other (not both).
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