Is there a way to poll several addresses using Mul

I am trying to poll several addresses (URL links) from a list that contains all these addresses using the http polling connector in Mule. Currently, I am only able to poll from one address but I would like to find a way to use this list to iterate the polling for each site. Is there anything built within Mule that provides such function?

Is composite source what you're looking for? It allows you to have more than one endpoint in the inbound.

e.g. from http://www.mulesoft.org/documentation-3.2/display/32X/Bookstore+Example

<flow name="CatalogService">
    <composite-source>
        <!-- Public interface -->
        <inbound-endpoint address="http://0.0.0.0:8777/services/catalog" exchange-pattern="request-response">
            <cxf:jaxws-service serviceClass="org.mule.example.bookstore.CatalogService" />
        </inbound-endpoint>

        <!-- Administration interface -->
        <inbound-endpoint address="servlet://catalog" exchange-pattern="request-response">
            <!-- Convert request parameters to Book object -->
            <custom-transformer class="org.mule.example.bookstore.transformers.HttpRequestToBook" />
            <response>
                <!-- Format response to be a nice HTML page -->
                <custom-transformer class="org.mule.example.bookstore.transformers.AddBookResponse" />
                <!-- Force text/html, otherwise it falls back to request 
                    props, which have form-encoded one -->
                <transformer ref="setHtmlContentType" />
            </response>
        </inbound-endpoint>
    </composite-source>
    ....

Edit:

The following is a simple foreach example:

<flow name="foreachFlow1" doc:name="foreachFlow1">
    <http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8081" doc:name="HTTP"/>
    <foreach collection="#[groovy:['localhost:8082', 'localhost:8083']]" doc:name="For Each">
        <http:outbound-endpoint exchange-pattern="request-response" address="http://#[payload]" method="GET" doc:name="HTTP"/>
    </foreach>
</flow>
<flow name="foreachFlow2" doc:name="foreachFlow2">
    <http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8082" doc:name="HTTP"/>
    <logger message="in flow2" level="INFO"/>
</flow>
<flow name="foreachFlow3" doc:name="foreachFlow3">
    <http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8083" doc:name="HTTP"/>
    <logger message="in flow3" level="INFO"/>
</flow>

Basically, the 'tricky' part is to figure out that the payload becomes the current item in the collection you're iterating over (the docs do a wonderful job at pointing that out... well at least if you're into fishing :P).