parsing Google search results

Hi,

how can I parse Google search results? The following code returns 
"integer(0)" instead of "1" although the results of the query clearly 
contain the regex "cran".

####
address <- url("http://www.google.com/search?q=cran")
open(address)
lines <- readLines(address)
grep("cran", lines[3])
####

Thanks

Philip

Philip Leifeld
Max Planck Institute for     | +49 (0) 1577 6830349 (mobile)
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