Iconlook is a very good search engine for icons. All you need to do is enter a keyword, and you'll see all the icons associated to that keywords. You can also browse icons by tags and choose the image size (12z12, 16x16, 22x22, 32x32, 48x48, 64x64, 128x128).
Styleneat is a free web service to organize and optimize CSS. You can sort selectors and properties, format the code on a single line or multiple lines. You can paste the CSS in a textarea, or upload it as file, or enter the URL.
Color Scheme Designer is a useful tool to create color schemes for web layouts. You can choose the base color on the color wheel, and then apply a huge variety of changes (complementary colors, contrast, brightness), manually or using the provided presets.
You can preview the output in a classic web layout, using light or dask colors, and even see how it looks to people having color vision deficiency.
You can also export the color scheme in different formats: HTML+CSS, XML, text, ACO (Photoshop palette), GPL (GIMP palette).
Some websites allow you to download YouTube videos and convert them into more popular formats like .avi, .mov, .mp4, .3gp, .mp3, .wmv, .flv. Just enter the video url, select the format and donbload the video. Here are some of those sites: