My favorite bits:
"Not all information is created equal. The bottom layers (the most ubiquitous, whose sources are the most ephemeral, and with the least amount of validation) lead to layers with greater dependability, all the way to the highest layers, made up mostly of academic resources. [...] Wikipedia [...] is not the bottom layer of authority, nor the top, but in fact the highest layer without formal vetting. In this unique role, it therefore serves as an ideal bridge between the validated and unvalidated Web."
"[...] the core challenge is [not] to educate students and researchers about how to use Wikipedia. [... S]tudents intuitively understand much of that already. The key challenge for the scholarly community [...] is to work actively with Wikipedia to strengthen its role in 'pre-research'."
Waldir