Marianne, your links certainly do illustrate the complexity of the issue of Kosovo independence...here is one concern mentioned: (recognition of) "Kosovo's independence is not done for the good of the people of Kosovo, purely for NATO's strategic advantage, and to undermine Russia's position in the former Yugoslavia, by effectively, isolating Russia's key ally in the Region, Serbia, in order to bully Serbia."
This is one concern that we sadly see a lot; foreign policy decisions for selfish reasons, rather than for justice toward the people involved.
And from another of your links, here is something Dan commented on, the secession of Kosovo setting a precedence for other secessionists around the world:
"Romania and Cyprus announced last week (31 January) that they would not recognise a unilateral declaration of independence by Kosovo. They, as well as other countries such as Spain, Greece and Slovakia, fear the move could set a precedent for separatist movements elsewhere. "
Marianne, here is another concern I saw in one of your links; this one makes me very cautious, because it could be true: "...read about Tito and his doctrine of "weak serbia=strong yugoslavia" this is an old project, buzz words like "independence" and "self-determination" are just a bright gift wrap for the gullible Western audience."
The underlining is my own emphasis.