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Google Apps for Education app: https://www.google.com/enterprise/marketplace/viewListing?productListingId=13045+661590233363337669
Website: http://books.google.com/
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Paid Android Tablet app: https://play.google.com/store/apps/details?id=com.wolfram.android.alpha
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Google Apps for Education app: https://www.google.com/enterprise/marketplace/viewListing?productListingId=6357+7423325443125160988
Google Chrome app: https://chrome.google.com/webstore/detail/cbpiiblghhnlalifiaddecedaeaijdpe