There are a couple of good resources on the net to learn about chess openings:
1) http://www.eudesign.com/chessops/
2) http://www.chess-poster.com/openings/openings.htm
3) http://www.chessgames.com/perl/explorer
These are just a few of the many resources for chess openings available on the internet. If you search "chess openings" in any search engine you will find pages upon pages to read through.
Also if you have questions about specific move or specific opening lines you can post it here in the Chess Openings section of the forum and there are many eager chess enthusiasts ready to discuss the various opening questions.
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~~~ where do I get to know about chess openings?
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