How do you manage your trees? Myself, I use webtrees. The interface may be a bit “old” and the handling of media in particular could have been better, but it’s an online solution (so I have my tree available all the time), it’s open source, it’s 100% standards compliant, and the community is wonderful, so … What is your favourite programme?
I agree that the source linking in familysearch is excellent. I’m a bit weary about using it as my main tree though: the lack of control, over the data and the architeture, the latter-day saints connection, and who knows when they will start charging? Etc. All the reasons why open source and open standards are always to be preferred. But I do admit to having a tree there … :)