Hiermee kan de positie van uw site of campagne ten opzichte van de concurrent duidelijker worden.

Uiteraard helpen wij u met de interpretatie van deze resultaten en vervolgens met een opstellen van een plan van aanpak!

Hoe populair is uw site vergeleken met die van uw concurrenten? Door Marketleap.

Op welke pagina staat uw belangrijkste zoekterm bij de diverse search engines, door Marketleap.

Het allerlaatste nieuws over search engines bij searchenginewatch.com.

Alles over zoeken en vinden op het web bij voelspriet.nl.

De 100 meest populaire Engelstalige sites van het web. Dagelijks bijgewerkt door Alexa.

De 100 meest populaire Nederlandse sites van het web, van Alexa.

Een Engelstalige verklarende woordenlijst met search engine terminologie van searchenginewatch.com.

Een overzicht van de krachtverhoudingen in search engine land.

Gebruik de vertaler van Google voor je buitenlandse campagnes.

Google Webmaster Tools is a must-have as a site owner. If you aren't leveraging it, you're doing yourself a disservice.

Yahoo Site Explorer is useful to Webmasters with direct access to their site information (after being verified), and can help you assess competitors. Site Explorer is great for link research, but it can also be used to evaluate pages indexed within Yahoo. The "Explore" button allows you to see exactly how many links are pointed to deeper pages on the list, among other useful quick-check functionalities.

For example, a quick check of Google for duplicate content can be accomplished by cutting and pasting a few sentences within quotes in the search bar. If there are multiple results, you have a duplicate content problem. Evaluate the listings returned to see if this issue exists within your domain or across other domains as well.

The free Google tool is one of the better keyword research tools, and can provide decent detail by region.

You can also use "shortcuts" or "hacks" within search engines (especially Google), but these also can be more industry/vertical specific, such as useful shortcuts for travelers found at Vagabondish. These, like Yahoo Site Explorer, are tools that can be used during discussions to provide a frame around the current Web site or page being discussed.

Other good free tools include URI Valet, which provides a great snapshot of technical issues that may be causing problems with a site. You can also find the Server Header Checker at the same site, which provides a quick look at the server response and path happening when you enter a moved URL, or a non-existent or malformed URL.

SEO Browser provides a great snapshot of what a "text browser" sees when looking at a site, and can be valuable in evaluating the indexed-content within navigation schemes, for example, and their order on the page.

Paid Tools
Several tools cost money, but I don't use many of them.

The Site Strength Indicator from Planet Ocean/SEO Insites provides a great look at some of the more detailed SEO elements, and also allows you to compare sites against each other. SEO Insites makes you apply for consideration to use their tools (if you apply, keep your fingers crossed).

SEOMoz (pro) Backlink Analyzer helps you get a quick grasp of the anchor text of links pointed to the site you're analyzing. They have several other useful tools, some free and some paid, including the cool Linkscape tool, which could gain even more prominence in 2010 if Google phases out the Toolbar PageRank indicator.