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Message: [QUOTE="Ged Byrne, post: 4413928"] Hi, Just getting to the bottom of my Net:HTTP problems, and browsing through the ruby source. I notice that the Net Module declares @@newimpl for backward compatability. However, in several places (such as the HTTP.get method) @newimpl is referred to. I know that @@ signified a class variable, and that @ signifies an instance variable. Can class variables be called freely as instance variables, or is there a significant difference when declaring a class variable as an instance variable? ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger [URL]http://uk.messenger.yahoo.com/[/URL] [/QUOTE]