Links Directory | Links Exchange Program

Links Directory | Links Exchange Program: "Hello...Hi everyone my name is malcolm and i am the owner of biz-giant directory.I was wondering if you guys could answer a question....How many links can someone have on their front page before getting penalized by google. I have heard many times that some search engine spiders have problems with to many links on a page and if so would a site map fix this issue?ThanksmalcolmBiz-Giant Directory"