No, you would see arrows pointing in opposite directions <--> like so
It means multiplying or dividing by 10, 100, 1000, etc
A pure aggregator is best defined as a blog that aggregates blog content from other sources.
An Aggregator blog or website don't write its own content. It aggregates information or content from third-party websites. There are different types of aggregator websites such as a poll aggregator, a review aggregator, and a search aggregator.