calibre vs Change.org
A side-by-side look at calibre and Change.org. For an in-depth review of either product, follow the links below.
calibre
Education & Reference
Calibre is a free and open-source e-book computer software application suite which runs on multiple platforms, allows users to manage e-book collections as well as create, edit, and read e-books. It supports a variety of e-book formats.
ebooklibraryreaderconvertermanageropen-source
Change.org
Online Services
Change.org is a website that allows people to start petitions and mobilize supporters to effect change on issues they care about. It provides tools for building campaigns, sharing them, and gathering signatures.
petitionsactivismsocial-change
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