Copyright does not protect information or prohibit links; it protects original textual and graphic expressions (i.e. what other people have written or their pictures). So you can include addresses, restuarant names, and telephone addresses--that's just information. You can provide links to museum, restaurant, mass transit, etc. websites. You can use photographs you yourself take. What you can't do is to pick up photos or text or graphics from other websites or materials and include them in your own blog--that would be using their copyrighted materially illegally.