It’s not hard to find images to use online – just use an image search. This works well, but it’s worth noting that doing so isn’t necessarily legal. Most of the images you can find this way are owned by their original creators. This likely doesn’t matter if you’re only using something for private use, or even a school assignment, but if you intend to publish a work you need to make sure all rights are cleared.
This is TERRIBLE! Besides being able to edit vector images like Will mentioned (which is important for those of us who don't have graphic artists available to create custom images or the budget or time to buy that service ad hoc), you could also search for style "families" (different graphics that were all in the same style). There was a huge range of files and styles in the collection and it was much faster to find what you need than to do a Bing search. Plus, you knew that everything there was free and free to use, without having to worry about CC license issues.
Español: agregar Clip Art a Microsoft Word, Italiano: Aggiungere Clip Art in Microsoft Word, Русский: вставить клипарт в Word, Português: Inserir Cliparts em um Documento do Microsoft Word, Deutsch: ClipArt zu Microsoft Word hinzufügen, Bahasa Indonesia: Menambahkan ClipArt ke Microsoft Word, Français: insérer des cliparts dans un document Word, Nederlands: Clipart toevoegen aan Microsoft Word, العربية: إدراج صورة كليب آرت في مستند مايكروسوفت وورد