We would suggest knowing about and using more than one online book services. A searcher has plenty to choose from. This is no different than using more than one web search engine.
Here are just a few other favorites ResourceShelf favorites we've compiled.
Live Book Search also will show how much (all, 10%, 20%, 40%, words around search terms) can be viewed online. Like other services, books that offer 100% of their content online (primarily titles where the copyright has expired) can often be downloaded as PDF files at no charge.
The Online Books Pageis the place to begin for freely accessible full text books online. Don't forget to review the new listings page with hundreds of books listed weekly (including Gutenberg and Google Library Program titles, RSS feed, too!)
ebrary Discover offers over 20,000 NEW full text books for free (pay only to print or copy, about $.25 cents/U.S.).
NetLibrary is a service that many libraries offer at no charge, for free, without having to visit the library. Full text, full image without a limit on how much you can read, annotate, etc. The same goes for Safari Tech Books and Books24x7. The latter two services also offer individual subscriptions.
Finally, the Digital Book Index lists over 137,000 online books with nearly 100,000 available free.
A family of resources to help information workers be more effective, raise the value of information in their organisations and contribute to success. Read more »
Recently I have found myself cooing over visualisation maps (and heat maps) of health and well being resources. The content rich data is overlayed with mapping technologies, and some interesting themes and patterns are emerging.
A lot of the talk around social media in the last year has been around information overload. Social media has provided us with new and exciting ways to create content. But it has also meant learning new ways to manage and engage with social media tools. Are we teetering on the edge of an information overload precipice?
Information overload is a figment of your imagination. Or a failure of your filter. Or a symptom of your technological submissiveness. Depends on who you ask.
What if you had to sort through 3.5 million articles and social media posts a day and try to pull out the most relevant items for your organisation? What if you then had to cobble it all together into something readable for your top groups and executives in your organisation?
Alacra Compliance saves time by aggregating information from both free and fee-based sources and enabling users to conduct an accurate federated search across these sources (coined “simultaneous search” by Alacra).
FreePint Family
Quilting big data threads
The fallacy of information overload
Information overload: fact, fantasy or filter failure? 
