i created a little tool to donate bitcoins with 2 clicks
The client needs to run the btcbtn python script as a daemon and the website needs a link like this one:
donate 0.1 BTC <br>
Copy paste donations for users which don't have btcbtn are still possible cause the link shows the bitcoin address.
The biggest pro in my opinion is, that it is more automatic and it does not need any registration with some kind of service or remote wallet or something.
I still couldn't fully try it myself cause i still don't own some bitcoins. Internally it uses bitcoin sendtoaddress.
I ask website owners to replace their plain text bitcoin addresses with this links. And all of you should run this daemon! ^^