@Katie - you got it - OK peppercorn rent only -$1 p.a. - you can pay into my PayPal account.
I have not found the limit yet. But then I've only tried a linklist of 6 or as it 7.
Try looking at @Tess Wizer
http://wizzley.com/how-to-be-elegant/ .She has used the links how I envisioned using them and has incorporated quite a few.
I have a feeling that there are no limits set,as yet.
I have over 150 in this Wizer alone.