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I have a great amount of points and I need to show them on map. I am using OpenLayers. Is it possible to simplify point geometry in order to speed up the process of rendering?

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Have a look at the OpenLayers Cluster Strategy and related examples:

Here's a good tutorial you might be interested in: Customized OpenLayers cluster strategies

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Are there any other ways how to group point features / just speed up process of rendering? –  Bob Apr 23 '13 at 17:46
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what is your data type, points, lines, or polygons? The method for simplification and representation would differ depending on this.

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This might have been better posed as a comment on the question, since it doesn't really answer the question. –  BradHards Apr 23 '13 at 11:14
    
My data type is: Points –  Bob Apr 23 '13 at 13:09
    
agreed, however I couldn't see how to comment on the original question. –  chris henrick Apr 23 '13 at 16:43
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