The Browser in the Belly. Jorn Barger, of Robot Wisdom, thinks web-based phrase-searching is the key to success in scholarship:

“Searching at http://www.google.com has been made so efficient that I
almost called this article ‘the Google in the Belly’: the first step to
becoming an Internet scholar is to train yourself so that whenever
and wherever you see an unfamiliar phrase, your immediate gut-
instinct is to copy it into Google…

But for literary research in particular, Web search-engines offer
something far, far more powerful than a super-encyclopedia– they
effectively offer a _super-concordance_ of every document on the Web…
and not just the simple word-by-word concordances that scholars have
learned to settle for– if you understand the search-syntax, you can
search for any _phrase_ in every document on the Web.”

Here’s Jorn’s customized Finnegans Wake search page (you might find it useful for other things too…)