sundarrawat - 6:06 am on Oct 10, 2013 (gmt 0)
IF you own both websites and have made dofollow link to each other then it does not come under paid linking in any case.
There are plenty of example sites which are doing the same thing. Paid links penalty is not a algorithmic penalty so Google will filter your website before penalizing or hit your website on advertorial issue.
Here you can read the complete article by Barry (SEORoundtabale) - [seroundtable.com...]