These are some tips I've picked up.
|Lavalier wearable microphone|
Mobile phones and tabletsAudio: Mobiles generally have good microphones for close recordings. A lapel mic can give high quality audio if required.
Tripod: Keeping the mobile phone still improves video quality and reduces the file size. Tablets can often be stood up using their covers, books or nearby walls. A number of small cheap tripods are available including the one below on the left that can grip a wide range of objects.
|Readily available tripods for phones|
Audio quality is often more important than video quality - depending on the purpose and audience for the video. A number of apps are available to dramatically reduce the video file size on the mobile device - for example Compressor for iPhone/iPad (free).
Voice record Pro (free).
Voice Record Pro allows easy wireless transfer to a range of popular cloud storage services.
YouTube or Vimeo.
Gmail accounts come with YouTube video storage. YouTube Capture (free) is an app that allows simple video editing and upload to YouTube. Videos can be uploaded as 'unlisted' so only those to whom the link is seen can view the video. Videos can also be set to 'private'.
Vimeo also has an app to upload videos.
Laptops and desktopsVideos can be recorded using webcams. Video and audio quality can be a challenge - good microphones are important. Videos can also be recorded directly to YouTube using My Webcam or to Vimeo.
Powered microphones: A powered microphone is usually required for recording in larger spaces. Powered microphones can be mounted onto video cameras or be a stand-alone device that records audio onto an SD card.
The Zoom Handy Recorder is a stand-alone powered microphone (plug in or battery) that captures quality audio over larger distances.