It's not hard to resize photos for the web but if you are not particularly computer literate you might need a helping hand figuring out what resolution is best etc. You might also benefit from learning how to crop a photo for better composition (something which these multiple mega pixel photos really lend themselves to when being resized anyway). An essential skill for indymedia photographers is how to obscure faces. Additionally, it would probably also be useful to look at the different file formats and the types of compression to choose from for uploading.
As well as these computer related skills, there is huge scope for sharing knowledge and experience in relation to getting the best from digital cameras - use of natual light, flash, fast exposures for action photography etc. How to focus on something not in the centre of your shot, how to shoot something that is backlight so that you don't end up with just a silhouette, how to take pictures in low light conditions etc.
Along with all the pracitical 'hands on' stuff, it would also be consructive to discuss things such as how to best present photographic material on indymedia, what to shoot and what not to shoot, what other sites are worth uploading to, the pros and cons of flickr etc. Other issues that might come up include licensing and selling images etc.
So, if any of this interests you (and it should if you ever upload photos to indymedia), and you are based in London or up for travelling in, then please get in touch. If enough people express and interest, I'll organise a date for a skill sharing sworkshop at the rampART, probably split into two distinct sections, one on taking pictures and the other on computer manipulation of those photos and uploading.
So let ue know, contact rampart AT mutualaid DOT org