Sugar Loaf
The CouchSurfing Wiki, an informal workspace which anyone can edit.
Pão de Açúcar
http://www.bondinho.com.br/ (The English and Spanish part of the website is currently under construction but information is available in both languages at the site) One of the main touristy things to do but it is one of the few safe places to get a really great view of the city. I recommend visiting it around sunset to get a different view of the city than from the Christ.
