If you’re not sure or you are new to insects, the top 30 is a good starting point. This page is the next step. Find one of these that looks close to the insect you are interested in, and then follow the links to explore the related insects. A warning though, is that many insects in the same scientific order can look really different. You may have to do some hunting until you get a feel for the groupings. Many insects cannot be identified from photo alone. They require specialists to identify often microscopic features of the organism.
If you know a little more about insects, it will be efficient to use the search or the menus (in development) to navigate through the site.
Click on the text or the photo to be taken to the appropriate section.