Starting....

I'd like to recommend some websites about geeneral contents I use for my English lessons, you can add more if you know any useful.

http://bogglesworldesl.com/ 

The first one has very useful conversation resources for adults.(banking, the doctor, restaurants, etc...)

http://www.phon.ucl.ac.uk/home/wells/phoneticsymbolsforenglish.htm (phonetic symbols)
http://www.teachingenglish.org.uk/category/training-videos-category/teaching-speaking (BBC)
http://www.eslprintables.com/buscador/buscar.asp?nivel=any&age=0&tipo=any&contents=conversation#thetop
This last link is very useful because you can share interesting exercices with a world wide community of English Teachers, the only problem is that if you need an exercise quickly you have to send one yours before downloading one from the community.