Connectors advanced levels

advice: http://elblogdelingles.blogspot.com.es/2013/05/4-consejos-para-reescribir-con-exito.html

http://www.eslflow.com/transitionalconnectingandlinkingwords.html            lots lots lots of links!!!!

http://esl.about.com/od/writingadvanced/a/wc_opposition.htm                    + other links

http://www.xtec.cat/~ogodoy/sac/rephrasing/rephrexercises.htm                  click on exercises on the left

http://www.agendaweb.org/grammar/conjunctions-english-exercises.html    lots of links
http://www.agendaweb.org/grammar/conjunctions-connectors-exercises.html  (easy)

exercise online
http://www.englishexercises.org/makeagame/viewgame.asp?id=2163
http://www.englishexercises.org/makeagame/viewgame.asp?id=5348
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-91807.php

CAE level material

http://www.flo-joe.com/cae/students/writing/linking/                   4 exercises CAE level

http://www.esl-lounge.com/student/grammar/4g67-linking-words.php

http://www.learn-english-today.com/lessons/lesson_contents/exercises/linking-words-ex.htm

Create your own lessons with videos from youtube and ted through    http://ed.ted.com/

Sign up, create your own lessons (watch tutorial). I have created a few ones but I don't quite like some of the tools there, but it looks cool and if you have a clear idea of what you aim at and have watched the video a few times, it's pretty straightforward.