We were delighted to hear recently that one of our private sector clients has achieved a fourfold improvement in purchase conversion rates, which translates into a significant increase in the bottom line, after the implementation of recommendations from usability testing undertaken by Web Usability. This is tangible evidence of the power of usability testing to both improve the user experience and yield considerable return on investment for site owners; it also reinforces the finding in the Econsultancy Conversion Report that survey respondents whose conversion had improved over the last 12 months carried out on average three times more website tests than those whose conversion had not improved.