studying brings happiness

about NASA images :"a service of Internet Archive, offers public access to NASA's images, videos and audio collections.The collection is divided into five parts; Aeronautics, Astronauts, Earth, Solar System, and Universe..."

＞＞more images
＞＞NASA channel in YouTube

about YouTube Toolbar "lets you easily search, browse, share, and download your favorite videos from YouTube! Finally, its the toolbar you've been waiting for and it simply works."

about X3 Studios "Create own custom wallpapers with stylish text, elements and design using online tool at x3studios"

with new notice from Google Images search: "You can try it out by clicking on "Find similar images" below the most popular images in our search results."

Now you can search similar images from Google more easily.

about Google Trends :"With Google Trends, you can compare the world’s interest in your favorite topics. Enter up to five topics and see how often they’ve been searched on Google over time. Google Trends also shows how frequently your topics have appeared in Google News stories, and in which geographic regions people have searched for them most"

about HTML Kit :"is a free, full-featured, customizable, multi-purpose editor designed to help HTML, XHTML and XML authors to create and publish web pages."

about Dirpy Studio Beta "converts your favorite YouTube videos to high quality mp3's in real time, or lets you download the video directly."

You can convert video files as mp3 and download to your computer. Even you can customize video file size like start time and finish time, review...

drag the [ bookmarklet ] to the browser so just click it when download any videos from Youtube.