Having played with Microsoft's 'Academic Search' recently, it's a pity that its coverage is not as wide as Google Scholar. Coverage is currently restricted to computer science, electrical engineering, medicine and physics but, of course, the computer science coverage overlaps with information science (as does medicine, which covers health information). That's still 4,300 journals from a wide range of publishers and, unlike, Google Scholar, you can see a list of the co-operating publishers and the journals covered. Information Research isn't one of them, yet, so I suggest that you all write in and tell them to include it :-)
Unlike Google Scholar, you can view an almost full record in a panel at the side of the output list, and that record can be in normal form (called Abstract) or in BibTex, RefWorks or EndNote format - ready to be cut and pasted. Also, the search output can be sorted by Relevance, Oldest Date, Newest Date, Author, Journal or Conference.
Check out a search on "information seeking behaviour"