Alot of new Linux users are always on the lookout for alternatives to proprietary software. In light of the NSA Prism leaks, more and more people are switching to open source alternatives.
I found this really cool website with a simple easy to use chart of proprietary software and free alternatives.
Check it out here: https://prism-break.org/
One thing the chart forgot to mention was a secure email provider and a secure cloud provider. They mentioned it, however, I would recomend hosting your own email and cloud so you have complete control over your data. It is also pretty inexpensive.