Is there such thing as having too many links on your site? I am talking about a sidebar section labeled 'resources' or something. If I then had 5,10,20+ links to different websites but they were all for similar products/services such as web hosting or SEO for example could this be detrimental for my site? Would Google punish for this? None of these links are spammy and all use appropriate anchor texts.
Also if I put up links for a client on say 30 sites all on the same day linking to the same url but with different anchor texts is it also possible that this will cause problems?