With a Medblog you search other blogs and the web for posts, news and other interesting stuff for your readers. There are different ways to store this information and use it later on. You need to process all this info. On Vandelay Website design there is a list of 10 tips to retain more of what you read online.
Here are some that appealed to me:
Read at times when you can focus
Be aware of visual cues
There are also some tips on the software you can use to help with the information overload. Read the comments for suggestions. I mostly use Google Notes for keeping notes and Del.icio.us for storing bookmarks, what do you use?
Here are some more tips to cope with information overload: How to split an Atom