Planetalyx Information Bureau - Of Infodumps and Exposition

Great starting point to learn to avoid the plague of infodumps:

Planetalyx Information Bureau - Of Infodumps and Exposition:

"Of Infodumps and Exposition"

My True and Vivid Writing class had a dialogue exercise this week, and that led some of them to a struggle with the practice of slipping exposition into their characters' conversation: a form of infodumping, in other words. They asked about ways to finesse this and I've quickly surfed up a few links to get them started:

http://www.fiction-writers-mentor.com/info-dump.html

http://www.writing-world.com/sf/infodump.shtml

http://research-writing-techniques.suite101.com/article.cfm/avoid_info_dumps_in_dialogue

http://www.therthdimension.org/FictionWriting/Info_Dump_Avoidance/info_dump_avoidance.htm

Has any of you fought this particular battle, and written anything about it? As always, links and tips are very much appreciated!