Newbie here, reading and learning all through the forum. I have done a search but can't find out if it makes any difference what format the URLs are in. Some are XHTML formatted and some are HTML?.?. I ask because I run my pages through two different checkers to spot errors and both of them kick out all the URLs. One offers to change all the example: chars to but I don't know if this might affect commissions? One feed defaults to the second format so I am hoping that it makes no difference.
There is soo0Oo much I don't know, but I'll get there.