I want to post ads online for free ....is there any way....

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I want to post ads online for free but going to each site and posting is taking a lot of time and am not able to post on many sites ....please suggest some software like adwizard 2.0.1 ...i liked the software. it fills the forms on the site automatically and the software contains list of all the free clasified advertising sites which makes advetising easier. please suggest some software which is free to use for lifetime ....