RMIT’s “Copyright Quick Guide” provides information on what we can and cannot legalistically within our blogs.
It tells us that when writing blog posts its okay to use short quotes from other resources such as books, movies etc as long as the right referencing is used. Using a paragraph of another persons work requires permission.
If you want to use images throughout your blog posts, it is a good idea to refer to creative common sites (everystockphoto, compfight etc.) to outsource these. You must remember that just googling for images won’t alway bring you to creative common images.