I was wondering if there was somewhere on the internet where you could find synonyms for words, I know I can use the dictionary and look up words, but the definitions don't always provide synonyms, for example the definition of red in the dictionary says simply , "kun koloro de sango".

The EAB catalogue lists Esperantaj sinonimoj by Jaan Ojalo, but I doubt whether it is online. However, one way to find cheap and out-of-print Esperanto books is to go to Esperanto conventions, congresses or summer schools, where there are often used books on sale (especially if an Esperanto library is getting rid of unwanted stuff), and you might be lucky (even if you have to wait to make a long trip from Alaska to do it).