Q&A: Are angels still among us?
Since we are told that angels are "ministering spirits sent to serve those who will inherit salvation" (Heb. 1:14) there is every reason to believe that angels are all around us and active in our lives. I would recommend the book Angels (God's Secret Agents) by Billy Graham. It is a wonderful book packed with real-life testimonies of the intervention of angels in people's lives.
As far as angels bringing messages from God, it's certainly possible, but with the unprecedented access we have these days to God's Word in printed and digital form, there's very little reason for angels to bring a message from God. His message is all around us if we would just pick up a Bible and start reading!