Hi to VT members,
I'll go to Pantanal in October, please advice some questions,
-where to go north or south?
-some reliable tour company?
-any expirience with pantanal discovery tour company?
Thanks to all.

Check the posting here by ericos, the most knowledgable (IMO) poster on any forum, with a lot of personal experience in the Pantanal and Amazon:
http://www.lonelyplanet.com/thorntree/thread.jspa?messageID=11544787&#11544787

I never went to Pantanal/Brazil but I'm brazilian...
I read on books at hand you may not neglect to go the folowing sites in Pantanal:
* Bonito (rafting), Parque Nacional do Pantanal Matogrossense, Rodovia Transpantaneira,
Porto Cercado, Corumbá
* Coxim (canoeing, fishing), Aquidauana (fishing), Miranda (fishing)
* Cuiabá, Parque Nacional da Chapada dos Guimarães, Poconé
I suggest you search your source tour company in Cuiabá or Corumbá cities
(or by Internet) since they are the bigger ones around.

http://www.fenixtour.com.br/

http://www.pantanaltour.com.br/

http://www.cuiabatur.com.br/mmapas.asp?codigo=16
* Watching the upper link at South Pantanal you may go to Bonito,Miranda,
Aquidauna, Corumbá, Coxim. North Pantanal you may go to Cuiabá, Poconé, Por-
to Cerrado, Rodovia Transpantaneira.

http://wikitravel.org/pt/Pantanal

http://turismo.news.com.br/index.php?option=com_content&task=view&id=35&Itemid=53

http://turismo.news.com.br/index.php?option=com_content&task=view&id=25&Itemid=29

http://turismo.news.com.br/index.php?option=com_content&task=view&id=36&Itemid=54

If you want fishing go to Miranda, Coxim, Aquidauana.
If you want relaxing there are many farms receiveing tourist in South Pantanal
If you want rafting go to Bonito. Sight-seeings are unbelieveble there.

http://www.ecoviagem.com.br/parques-nacionais/mato-grosso/pantanal-matogrossense/

http://www.ecoviagem.com.br/agencia-turismo/mato-grosso/pocone/pantanal-trackers.asp

Cassiovieggore

Try to contact these people:
http://www.pantanalexplorer.com.br/english/index.php
and take a look at
http://www.pantanaltour.net/
http://www.h2oecoturismo.com.br/