Need a software or service out there that will let me feed my blogs with RSS feeds

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I need help I got several blogs from different platforms like thumblogger, blogger and wordpress I need to have my RSS feeds automaticaly post to all my blogs that will post to different platforms all from the same place. I checked out Rss2anywhere its great just what I need but I can not use because of all its restrictions yes I understand its to get quality content up.

Does anyone out there know of anything that can help me aside from posting individual posts or hiring a writer.

Thanks.