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This plugin generates a thumbnail gallery from picasa pictures. To add a thumbnail gallery to a post or page just use the [gdata-picasa] tag and add your required paramters.

Short example:

[gdata-picasa q="boat" max_results="12"] will search picasa for 12 pictures that are related to boats.

The Google Data Picasa API parameters can be used to build your gdata-picasa tag. See the Frequently Asked Questions for more information about the available parameters.