http://imdb.com/
    Use IMDBPy - http://imdbpy.sourceforge.net/

http://www.rottentomatoes.com/
    Scrape ratings from pages.

    <process:AtomicProcess rdf:ID="MovieRatings">
        <process:hasInput>
            <process:Input rdf:ID="Title">
                <process:parameterType rdf:about="&xsd;#string"/>
            </process:Input>
        </process:hasInput>
        <process:hasOutput>
            <process:Output rdf:ID="Rating">
                <process:parameterType rdf:about="&xsd;#nonNegativeInteger"/>
            </process:Output>
        </process:hasOutput>
    </process:AtomicProcess>


http://amazon.com
    Sign up for developer key.
    http://soap.amazon.com/schemas2/AmazonWebServices.wsdl

DistroWatch Linux distribution popularities
    Scrape statistics from site.
    http://distrowatch.com/stats.php?section=popularity

Latest RFCs and Internet Drafts
    http://tools.ietf.org/
    http://tools.ietf.org/html/new-rfcs.rss
    http://tools.ietf.org/html/new-ids.rss

SourceForge Latest/Most active projects
    http://sourceforge.net/

SpotCrime Crime statistics
    http://spotcrime.com/analytics/pa/philadelphia

IEEE Intellegent Systems Latest Articles
    http://ieeexplore.ieee.org.ezproxy.library.drexel.edu/rss/TOC9670.XML

Google Reader "Coolest" articles
    http://www.google.com/reader/public/atom/user/15650323335570657892/label/cool

Newest Flickr Photos
    http://www.flickr.com/photos/

    <process:AtomicProcess rdf:ID="PhotosByTag">
        <process:hasInput>
            <process:Input rdf:ID="Tag">
                <process:parameterType rdf:about="&xsd;#string"/>
            </process:Input>
        </process:hasInput>
        <process:hasOutput>
            <process:Output rdf:ID="Photo">
                <process:parameterType rdf:resource="FlickrPhoto"/>
            </process:Output>
        </process:hasOutput>
    </process:AtomicProcess>