My experience with yahoo is good bcos i got initial traffic from it rather than google. but now traffic coming from both, yaa bing is so useless for me.
I did'nt say just want to share my experience recently i start my new blog and written about 5 unique articles my blog was indexed in yahoo with in first 3 days and after 7 days google also get indexed. Even i did'nt done anything bookmarked my 5 articles.
Submit your site in Digg and some other popular social bookmarking sites then your site will be indexed very fast..
Only the backlinks help us to index the pages by search engines fastly. If you are not building links means the spider will not visit your site regularly.
This might be why i am finding it slow on one on my sites - only 4 pages, will add more content and see what happens, cheers