How effective is your website? Are you reaching a wide audience, or do you have yet to get noticed? Beyond analytics, do you know how popular your website is?

Quarkbase

Quarkbase is a web tool that scrapes the web for lots of information about a particular site. It shows references and links to that site across many social networks (Stumble, Delicious and more). It offers more than just data on site visitors - you can learn more about a site's "social popularity."

Statbrain

This is a basic way to determine how many visitors a site receives during the day. (Its numbers are not verified.)

Yahoo! Site Explorer

Yahoo's Site Explorer enables you to see who is linking back to a particular website. It also offers probable traffic numbers and other statistics.

Compete

Compete offers two services, one paid and one that's free. Using the free version, you can compare up to three websites at once to gauge traffic trends and analysis. The paid version allows more comparisons and unlocks other analytics tools.

Quantcast

Quantcast a powerful analytics tool, allowing publishers to measure traffic.

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Amy Webb is a digital media consultant and head of Webbmedia Group, LLC. Find more multimedia tips and ideas at her blog, http://www.mydigimedia.com. You can also follow Amy on Twitter and delicious. Webbmedia Group is a vendor-neutral company. Any opinions expressed about products or services are formed after testing, research and interviews. Neither Amy Webb nor Webbmedia Group or its employees receives any financial or other benefits from vendors.