Our website is http://model-a.com.au - we'd want to replace the current word mark logo we have with a new word mark logo. We would like the logo to complement that of DoseMe (http://www.doseme.com.au), as the two companies work together in the same office and are part-owned by the same director (we still want the Model Answers logo to be unique and different though!).
Inspiration for the DoseMe logo came from this graph: http://en.wikipedia.org/wiki/File:Linear_PK_Example.png - have a look at images in Google with the search term 'pharmacokinetics' and/or 'pharmacodynamics', and other plots/equations on Wikipedia (http://en.wikipedia.org/wiki/Pharmacokinetics), also http://www.nature.com/ijir/journal/v19/n3/fig_tab/3901522f2.html . Rather than have the typical medical-type logo (crosses, stethoscopes), we'd like to have something related to what we actually do, which is analysis of clinical trial data (e.g. the concentration of drug in the body over time, or the effect of a drug over time).
We would also still consider using the greek letters in our old logo (lowercase sigma used for 'o' in Model, and lowercase eta for 'n' in Answers) - or other greek letters, as our field uses them a lot (see http://www.1728.org/greek.htm : in our field we use lower case alpha, beta, gamma, delta, epsilon, eta, theta, sigma & omega, and uppercase delta, theta, and omega).