GoogleのPicasaの写真データを2件分、取得した時のサンプルです。Twitterと比べて、かなり複雑なのが分かると思います。初見では、どこに写真のデータがあるのか発見するのに時間がかかるでしょう。JSONの扱いに慣れてきたら、色々なウェブサービスのAPIを利用してみて下さいね。
JSON
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