I have noticed many of hindi literature lovers usually try to find hindi novles on the internet. Hindi novel and fiction writing is widely read among hindi readers. Usually Hindi books readers use google search to findout the novel books according to their taste. Though not much useful search results come as only few novles in hindi are available online unlike hindi story and hindi poetry books and ebooks. Copyright is another issue about the availability of hindi books at internet. Still Some ebooks are available for the readers.
You can download some of popular hindi novels books from here-