Can I transfer/share my projekts with my freinds?
I don't know how simple you'd like this to be, but the common way is to use source control, often called svn. This does require a server with ample drive space (possibly one of your own computers). It's also possible to just transfer files back and forth. However, this is far from ideal and won't properly cover anything coded in. I am no expert on this subject as I haven't setup our server, but here's a few links that might help you out...
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