Web/Android: One of the best things about Google Now is that it floats useful information right when you need it. Gluru is a new app and web service that wants to do the same, just for your productive life, by pulling from Dropbox, Google Drive, Evernote, Google Calendar and more.
Gluru is kind of a "personal assistant" in the way an actual assistant would watch your calendar, keep track of your meetings and events, and help you stay prepped by bringing you the things you have to review before you actually need them. At the beginning of your day, Gluru shows you a digest of your daily events, complete with the files and information you need for each meeting, appointment, deadline or to-do on your calendar. Then, as the day progresses, Gluru automatically brings up those files, emails and other information as those events happen, both on your phone and on your desktop.
It's not entirely passive though. At any time you can tap the big "Now" button and Gluru will think and float information that the app thinks you need right now to get things done. Of course, in order for all of this to work, you'll need to link Gluru to the services you use most often, and right now the service supports Dropbox, Google Drive, Evernote, OneDrive, Box, Google Calendar and of course Gmail. By connecting your accounts, you can also use Gluru to search across all connected services, so if you don't remember whether the report you need is a Gmail attachment, saved in Dropbox, or in your company Box account, Gluru can find it.
Best of all, the app learns as you use it, so you get better results when you search, and you get more useful information in those digests and in the moment. The service is completely free for individual users (teams have to pay, which is how the service plans to make money, not harvesting data from users, thankfully), and the Android and web apps are available now. iOS is coming soon.