I found this website which is fantastic for LDR couples!
It's called Synaptop. It's very, very new and still in beta mode, I think, so there's a lot of work to be done to make it work but definitely keep an eye on it because it's such a great idea and looks super promising! Plus, it's FREE! 
Taken from the website:
"Manage data, apps and relationships
Synaptop
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
Taken from the website:
"Manage data, apps and relationships
- Watch movies WITH friends.
- Listen to music WITH friends.
- Annotate and edit documents WITH friends.
- Video chat with multiple friends.
- Store, share, and OPEN files. (Plus, get 7 GB+ free storage space.)
- Collaborate in apps!"
Synaptop
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