Odd time signatures are pretty rare. The main ones you'll encounter are 4/4, 2/4 & 3/4.
If you're JUST learning about music, you really shouldn't worry about anything more advanced, unless you have unrealistically high musical goals for yourself.
This gives a basic understanding of time signatures --
http://en.wikipedia.org/wiki/Time_signature#Simple_time_signatures
http://en.wikipedia.org/wiki/Time_signature
If you find the need to learn obscure time signatures, then have a look at these sites --
http://gryffonius.hubpages.com/hub/Odd-Time-Signatures-Made-Easy
http://dkap.info/oddtime.php
http://store.drumbum.com/drums/odd-time-signatures-learning.htm
http://www.drumdojo.com/oddtimes.htm
http://en.wikipedia.org/wiki/List_of_musical_works_in_unusual_time_signatures
Or try this (and related pages) --
http://bouncemetronome.com/video-resources/odd-time
If you're just learning, I'd worry more about rudiments --
http://www.vicfirth.com/education/rudiments.php
And invest in a metronome (VERY IMPORTANT! See source).
While you're at it, try understanding the time signatures within this --
http://www.youtube.com/watch?v=wCweFfcV7Xo