This is a list of the websites I use for my research and to keep me up to date with what's happening in the world of Internet marketing. I cannot recommend any one as a single source of information. Most have back-catalogues of previous articles listed by subject.

As many draw articles from multiple sources there is an element of repetition, particularly in the daily newsletters. I subscribe to most of their newsletters - but this can overload your email inbox, particularly as many come out on a daily basis. This is OK if you read them every day - but it is easy to get a backlog!

Note that this review is my own opinion, you may form different views - so it is worth taking a look and making your own judgement. These are presented alphabetically - and not in any order of quality / preference.

* aaronsongroup.com Jack Aaronson writes for a number of publications on a number of e-commerce subjects. The archive of articles is extensive.

* Bowencraggs.com - check out the best practice library and the David Bowen commentaries then sign up for the newsletter - they each feature an example of good or bad practice from websites around the world.

* Center for Media research Although part of the range of services mentioned in mediapost [below] - this one is worth its a mention of its own. Although research from all media is included, there is a mountain of data on Internet-related marketing.

* clickz.com This is the home page for my browser to make sure I read it every day. A must for e-marketing specialists.

* DaveChaffey.com Dave is a competitor of mine in the book-writing stakes. Because mine are much better I would not advise you buy his books rather than mine, but his website is a mine of information.

* Debbie Weil Advice and tips from long time expert in social media.

* doctorbiz.com This bloke is a bit of an evangelist in more ways than one, his presentation is a bit twee, but there is some good content, with particularly sound practical advice.

* doubleclick.com An e-Marketing company that uses publication of its research as part of its marketing effort.

* ecommercetimes.com Some good articles - but perhaps a little too general.

* e-consultancy.com Research, information, training and events on best practice online marketing and e-commerce.

* The email stat center launched in March 07 with limited content - but it has the potential to be an essential resource for researchers, practitioners and students of email marketing.

* eMarketer sign up for their 'eMarketer Daily' newsletter. Short and to the point - and usually research based - it helps you stay in touch with current trends.

* enquiro.com A Search engine marketing company that uses the dissemination of information, opinions and research as pat of its own marketing effort. Particularly good for search related metrics.

* excessvoice Articles and advice from Nick Usborne, a leader in the field of online copywriting.

* FutureNow - this organization [or its founders, the Eisenberg brothers] gets more mentions in my books and links from this website than any other. Make sure you sign up for the GrokDotCom newsletter.

* gerrymcgovern.com This site's title is 'website content management solutions', though in reality it is actually about content development. McGovern explains that the title attracts more consulting work than simply 'content development'. A sad reflection of how much online content is undervalued by businesses.

* highrankings.com A good mix of advanced and more basic search engine advice from an expert practitioner. Sign up for the newsletter and check out the archives.

* hitwise.co.uk Another business that uses its free content as part of its marketing effort. Concentrating on search engines and web usage in general [using "relationships with ISPs around the world, Hitwise's patented methodology anonymously captures the online usage, search and conversion behaviour of 25 million Internet users"], the newsletter is particularly good.

* internet.com Monster of a site [with the best domain name of all?]. Apparently there are more than 160 websites organised into 16 channels - there is almost too much information here, it can take a while to find what you are looking for.

* Internet Retailing Obviously this concentrates on B2C sales, but it has some very good stuff - make sure you download the digital issue of their monthly magazine.

* Internet Archive - more interesting than useful, but it is an education [of sorts] to look at how websites have evolved [or not!].

* Internet World Stats - free up to date worldwide Internet Usage and population statistics.

* Larry Chase's Internet Marketing Resource Center - the title says it all. Sign up for the newsletter.

* marketingexperiments.com Offers free copies of their extensive research results.

* marketingprofs.com Excellent e-marketing content. Note however, the terminology used and models / theories quoted means that the articles are mainly for readers with a background in marketing.

* marketposition.com Mainly search engine stuff - but good search engine stuff.

* mediapost.com A provider of numerous newsletters on media, marketing and advertising that keep the reader abreast of developments in those environments.

* rightnow.com Some very good stuff including down-loadable 'white papers'. Be aware, however, this is a commercial company that uses free information to promote their products/services [though they do it very well - a case study example of the practice].

* searchengineformarketers.com Larry Chase's Search Engine for Marketers does exactly what it says on the tin, offering reviews and links to the top sites in over 40 marketing categories.

* Search Engine Land If you sign up to the daily 'SearchCap' newsletter [as I do] you could find yourself swamped in useful information - though the site does have an archive search facility if you want to look for something specific.

* searchenginewatch.com The website for search engine optimisation. For 'in-depth' stuff you have to pay a fee to join - get your employers to pay up, it is worth it - plenty of good stuff in the free section though.

* useit.com Bow down to the God of usability - this is Jakob Nielsen's website. He's been my hero since he declared frames to useless back in 1996[ish] - he re-affirmed his position in late 2000 when he pronounced 'Flash' as being 99% bad. My kind of guy. Some outstanding free stuff, but the site is commercial and the in-depth stuff is on a fee basis.

* Webcredible Another example of a commercial organization that publishes papers, reports and advice as part of its marketing efforts.