Essential free internet tools.

• HkSFV
  HkSFV uses CRC-32 and MD5 technology to validate the integrity of files that you have downloaded or moved through a potentially unstable medium (burnt to CD, transferred over the Internet/LAN). HkSFV can verify your files in seconds, saving you time and worry. Compatible with Win-SFV and md5sum.
  
  
• Download Accelerator Plus
  Download Accelerator Plus (DAP) is the most popular download manager with over 126 million users. DAP leverages patented technology, easy management of downloads, and rich features including: multi connections, auto-recovery from lost connections and errors, privacy tools, faster downloads from fastest sources, preview of files as you download; broadband optimization; top downloads; new design. DAP is available in 10 languages.
  
  
• Youtube Grabber
  Downloads FLV files from Youtube.com. Simply copy and paste the URL of a video from Youtube into the program, press grab OR enter, and the file will be downloaded into the same directory as the program. Version 3 may include unspecified updates, enhancements, or bug fixes.
  
  
• FileZilla
  FileZilla is an FTP program for file uploading and downloading to and from your FTP site, server, or host. The program lets you transfer files and navigate among folders, Web sites, and your computer. This software enables you to perform multiple file transfers simultaneously.
  
  
• Skype
  Skype is software that enables you to make free calls anywhere in the world. Skype uses innovative P2P (peer-to-peer) technology to connect you with other users. It offers several features, including SkypeOut calling from Skype to regular and mobile phones worldwide, conference calling, and secure file transferring. Skype calls have better sound quality than your regular phone and are highly secure, with end-to-end encryption.
  
  
• ManyCam Virtual Webcam
  Manycam allows you to use your Webcam with multiple programs at the same time. Broadcast your Webcam on MSN Messenger, Yahoo!, Skype, AIM, Paltalk, and Camfrog--all simultaneously. Manycam also allows you to add cool live CGI (computer generated special effects and graphics) to your Webcam. Make it appear as if your face or hand is on fire with our "fire" effect.
  
  
• TextMessage
  Instantly sends a text message (SMS) to one or multiple (Blaster) cell phones from yourdesktop. It is not necessary to know what their cell phone carrier is. Unlike other programs which route your messages through their central server, this program sends the messages straight to the recipient so it has greater reliability, quicker delivery time, and is confidential.