SoundBible is another site that hosts many sound clips in mp3 format and Wave. On the home page, lists the most popular videos in a “cloud” of tags, as well as newer ones. Sound clips, as is common in such sites, have a small player you can listen before you download, which is quite useful to save a little time. And it is best not require any registration.
For those looking for something more specific a search engine is also available, or if you do not find what we need, we can make a request and wait to see if anyone can help. Note that most of the clips are licensed under the Creative Commons – Attribution 3.0. Certainly a good option to add a full list of sites to download sounds we published several months ago.