Paul Todd 
E-Commerce Law [PDF ebook] 

This book includes detailed coverage of intellectual property, contract, encryption and liability issues, including allocation of domain names, use of metatags and other forms of search engine optimization, digital signatures and the position of ISPs and other intermediaries. There are case studies on electronic conveyancing and e-taxation.Though the book is written from a UK perspective, comparative material is included from other jurisdictions, including America and Singapore in particular.