Generally Internet Marketing is the same as web promotions including posting in Trade boards, BBS, Portals.

Trade board is a place where buyers and sellers meet each other. Placing a site here makes buying and selling of products easier.

Bulletin Board Service works as a message board. Here any general information about a product/service can be posted.

Trade Boards

http://www.tradeoffer.com
http://www.alibaba.com 
http://www.gbot.net 
http://www.findoffer.com 
http://www.ecplaza.net
http://www.ec21.com
http://www.ectrade.com
http://www.busytrade.com 
http://intZtrade.com 
http://www.buyworld21.com 
http://www.danex-exm.dk/dynamic.htm 
http://www.gadnet.com 
http://www.thaipost.com
http://www.iebb.com/index.asp
http://www.eztel.com/trade/addurl.shtml
http://www.businessonlineindia.com/classifs.htm 
http://www.tradezone.com
http://www.bizeurope.com 
http://www.france.abcexports.com 
http://www.sigab-trading.com 
http://ecparadise.com
http://www.chinaexporter.com 
http://www.worldtradevenue.com 
http://www.sigab-trading.com 
http://www.commerce.com.tw 
http://www.wtvusa.com 
http://www.ttnet.net 
http://www.egtrade.com 
http://www.bees.co.kr 
http://www.tw-online.com 
http://www.ssrholland.com 
http://www.poltrade.de 
http://www.sinotrade.net 
http://www.wtn-de.com 
http://www.chinapages.com 
http://www.ecimpex.com 
http://www.iecworld.com 

BBS

http://www.cybercc.com 
http://www.melakatoday.com.my 
http://www.newkorea.com 
http://www.commerce.com.tw
http://www.manufacturer.net 
http://tradeseoul.com 
http://ibrd.com/bbs/bbs.cgi 
http://www.chinabusiness.org 
http://www.chinae.com 
http://www.ewtrade.com 
http://www.BusinessInPoland.Com
http://www.russia-trade.com
http://www.kicon.com 
http://www.world-trading.com 
http://www.duportail.be/belgiumtrade/board3.cg 
http://www.easyads.co.za
http://www.greatbasin.net 
http://www.bond.cz
http://www.dna.ne.jp/cgi-bin/bmp/bbs1.cgi 
http://www.indiamart.com
http://www.tmjtrade.com 
http://www.chinachemnet.com 
http://www.chinatree.com
http://www.wt.net 
http://forum.hongkong.com
http://centretrade.com 
http://klickandsave.com 
http://www.shinestar.com 
http://www.worldtradelink.net 
http://www.tips.co.za 
http://www.fintrac.com 
http://www.mexconnect.com 
http://www.countyweb.co.uk 
http://www.trade-center.com 
http://www.hellas-on-business.gr 
http://www.marketing-by-sobus.com 
http://www.hkprod.com.hk 
http://www.chinabusiness.org 
http://manufacture.com.tw