Yes, both LinkEmu and PageMarker offer a Free Trial.
LinkEmu is designed for Large Enterprises, Medium Business and Small Business.
PageMarker is designed for Individuals, Medium Business and Small Business.
Pricing for LinkEmu Starts at $4/Month whereas for PageMarker Starts at $2/Month.
Some top alternatives to LinkEmu includes Qlearly, Qualified, Workvivo, Marklog, Pincone, Marqly, Site2Share, QuickTab, Blog To Social, Siimpl Bookmarking, PageMarker and IFTTT.
Some top alternatives to PageMarker includes WebFolder, Qualified, Workvivo, Marklog, TabsFolders, Trove, Siimpl Bookmarking, Toby, Desktop.com, Dynalist and IFTTT.