Originally Posted by facialfreak

free for all links will FILL you inbox with unwanted unsolicited emails ...

Best you use a throw-away email if you are going to submit to them.

Also be very aware of Google's Guilty by Association penalties
In short - if you are indiscriminant about who you link to, and who links to you, a couple links to/from sites in bad neighbourhoods can fuck a year's hard work literally OVERNIGHT ...

Building GOOD links is a science ...
My grandfather taught me to do something well the first time, and it will prevent you from having to do it over again further down the road.

Food for thought.