LogoManager has an enhanced File Open dialog that includes an integrated logo browser:
When loading bitmaps, the files will very often not match the logo size that you want to use. In this case, you can use the right-click context menu in the preview pane to set the desired logo type, and optionally stretch the source graphic to fit that size.
If you need to import a graphic from your web browser, or from another graphics application, you can do so using the clipboard.