Here are some web related products and services of which I have experience and which I would recommend to others who are running an internet business:
 
Hitwise
The Hitwise online competitive intelligence service provides data analysis of web activity and daily insights on how 25 million people interact with over 1 million websites in 160+ industries. We publish an annual WebWatch report using Hitwise data to assess web activity in the health and medical sector.
 
Adtech Helios IQ
We use this platform to deliver banner advertising to our sites. The Helios IQ ad serving platform enables web publishers to manage, serve and evaluate virtually any kind of online advertising campaign including display, video and mobile formats. 
 
Dotmailer
DotMailer is an ideal HTML email marketing system for business. We use it to keep in touch with our customers via trackable branded HTML emails that reflect our organisation's marketing and branding.
 
Zoomerang
From time to time, Intuition Communication invests in surveys and market research into the healthcare industry, such as the 2008 Medical Tourism Survey. We use Zoomerang to create and send professional web based surveys and analyse results instantly.
 
Axzona
Axzona is an independently hosted service which protects our sites from unexpected downtime. The information provided also helps diagnose and pinpoint site problems.
 
Wired Contact Enterprise
Provided by Trilogy in the USA, Wired Contact Enterprise is the contact management system we use. WCE is a flexible CRM web solution with robust functionality for anywhere, anytime access. It delivers powerful online and mobile CRM capabilities previously exclusive to higher-end, more expensive solutions.
 
Ascendancy Internet Marketing
Ascendancy Internet Marketing, a Shropshire based internet marketing consultancy, handles our search engine optimisation and manages our Pay Per Click campaigns.
 
Bazaarvoice
At Intuition, we use  Bazaarvoice Ratings & Reviews™ to provide patient reviews on our web sites such as Medical Tourism Ratings and Reviews. A great service which is well supported and a market leader in social commerce systems.