Here are some links I use almost daily to track and get interesting marketing information for the web.
- Amazon affiliates: https://affiliate-program.amazon.co.uk/
- Google adsense: https://www.google.com/adsense
- Google adwords: https://adwords.google.com/select/snapshot
- Keyword tool: https://adwords.google.com/select/KeywordToolExternal
- Search keyword tool: http://adwords.google.com/sktool
- Trends: http://www.google.com/trends
- Google reader: http://www.google.co.uk/reader
- Google Keyword ToolBox: http://www.googlekeywordtool.com/
- Google WebMasters Tools: http://www.google.com/webmasters/
- Google Analytics: http://www.google.com/analytics/index.html
- Google ‘hot’ trends: http://www.google.com/trends/hottrends
- YouTube Google Business Channel: http://www.youtube.com/user/GoogleBusiness
- Official SEO starter guide for google: http://www.googlekeywordtool.com/reports/search-engine-optimization-starter-guide.pdf
- SEO Factors: http://www.seomoz.org/article/search-ranking-factors