Terms of use in the cloud

Google Terms Of Service

20 April 2015 Google Terms Of Service

When you upload, submit, store, send or receive content to or through
our Services, you give Google (and those we work with) a worldwide
license to use, host, store, reproduce, modify, create derivative works
(such as those resulting from translations, adaptations or other changes
we make so that your content works better with our Services), communicate,
publish, publicly perform, publicly display and distribute such content.
The rights you grant in this license are for the limited purpose of operating,
promoting, and improving our Services, and to develop new ones. This license
continues even if you stop using our Services (for example, for a business
listing you have added to Google Maps). Some Services may offer you ways to
access and remove content that has been provided to that Service. Also, in
some of our Services, there are terms or settings that narrow the scope of
our use of the content submitted in those Services. Make sure you have the
necessary rights to grant us this license for any content that you submit
to our Services. 

In short, you retain IP over the content, but grant Google and those they work with the rights to use your content to develop and promote Google services.

These conditions have been present since 1 March 2012.

Microsoft Services Agreement

19 October 2012 Microsoft services agreement : http://tinyurl.com/8e4kucy

When you upload your content to the services, you agree that it may
be used, modifed, adapted, saved, reproduced, distributed, and
displayed to the extent necessary to protect you and to provide, protect
and improve Microsoft products and services. For example, we may
occasionally use automated means to isolate information from email,
chats, or photos in order to help detect and protect against spam and
malware, or to improve the services with new features that makes them
easier to use. When processing your content, Microsoft takes steps to
help preserve your privacy.

20 April 2015 Microsoft services agreement

3.1. Who owns my Content that I put on the Services? You do. Some Services
enable you to communicate with others and share or store various types of
files, such as photos, documents, music and video. The contents of your
communications and your files are your “Content” and, except for material
that we license to you that may be incorporated into your own Content (such
as clip art), we don't claim ownership of the Content you provide on the
Services. Your Content remains your Content, and you're responsible for it.

3.2. Who can access my Content? You have initial control over who may access
your Content. However, if you share Content in public areas of the Services,
through features that permit public sharing of Content, or in shared areas
available to others you’ve chosen, you agree that anyone you've shared Content
with may, for free, use, save, reproduce, distribute, display, and transmit
that Content in connection with their use of the Services and other Microsoft,
or its licensees’, products, and services. If you don't want others to have
that ability, don't use the Services to share your Content. You represent and
warrant that for the duration of this Agreement you have (and will have) all
the rights necessary for the Content you upload or share on the Services and
that the use of the Content, as contemplated in this section 3.2, won't violate
any law.

3.3. What does Microsoft do with my Content? When you transmit or upload Content
to the Services, you're giving Microsoft the worldwide right, without charge, to
use Content as necessary: to provide the Services to you, to protect you, and to
improve Microsoft products and services. Microsoft uses and protects your Content
as outlined in the Windows Services Privacy Statement, Bing Privacy Statement,
MSN Privacy Statement, and Office Services Privacy Statement
(collectively the “Privacy Statements”). 

In short, once you share data you give the people you shared it with the right to treat it as free for reuse.

DropBox Terms Of Service

DropBox Terms Of Service

24 April 2014 DropBox Terms of Service

When you use our Services, you provide us with things like your files, content,
email messages, contacts and so on ("Your Stuff"). Your Stuff is yours. These 
Terms don't give us any rights to Your Stuff except for the limited rights that
enable us to offer the Services.

We need your permission to do things like hosting Your Stuff, backing it up, and
sharing it when you ask us to. Our Services also provide you with features like
photo thumbnails, document previews, email organization, easy sorting, editing,
sharing and searching. These and other features may require our systems to access, 
store and scan Your Stuff. You give us permission to do those things, and this 
permission extends to trusted third parties we work with.

...

Our Services let you share Your Stuff with others, so please think carefully about
what you share.