To those readers that have never come across TED.com before, the site is an amazing resource of free online lectures and videos on a huge range of topics. TED's database spans everything from media to science and it is easy to find a wealth of great content using its search facility. All TED's lectures are provided by vetted, qualified experts and at present there are over 1,200 of them registered on the site – with 348 of them being specifically science lecturers. Below are a selection of some not-to-be-missed lectures available through TED. This is a guest post by Lauren Hannigan. If you wish to publish your articles on my blog, email me! David Gallo: Deep ocean mysteries and wonders Deep ocean mysteries and wonders video David Gallo is a marine biologist specialising in “pushing the boundaries of oceanic discovery”.…