While the Kindle Paperwhite is a great lightweight device with near-infinite battery life for reading anywhere (even walking or at the gym), you can also pick up a Kindle app for free…there’s no need to buy a dedicated Kindle tablet (although they are discounted during the “National Reading Month” of March and radically expand your reading opportunities):

http://www.amazon.com/gp/feature.html?docId=1000493771

By using a kindle workflow it is easy to read, store, and annotate digital text anywhere on any device, forever, from your own personal archive, including such free books as this miracle from Amazon: translations of Petrarch’s sonnets by many different poets through the centuries…available here:

http://www.amazon.com/Sonnets-Triumphs-Other-Poems-Petrarch-ebook/dp/B0084C6GEA/ 

With the free ‘Send to Kindle’ app you can archive all of your eBooks and PDF scripts in the cloud (available for free from sources such as Lee Thompson’s Script Archive and Scridx.com):
http://www.amazon.com/gp/sendtokindle

Finally there is also a ‘Send to Kindle’ browser-plugin for Chrome to permanently archive html (from sources such as Luminarium, Renascence Editions, and Elizabethan Authors):
http://www.amazon.com/gp/sendtokindle/chrome