You can find plenty of sites in this category by searching on the web.
How ever I personally suggest you get a different topic from a latest computer magazine, like:
"Electronics For you"
"Linux For You"
"Digit"
"PC Quest"
or be in touch with good online community like us
// instead of going to a capsule one
available on net.
Seminar topics for computer science and contains paper presentations for computerscience. Collection of seminar topics for computer science & information technology
499 topics for seminars electrical and electronics engineering 353 topics for seminars electrical and electronics engineering Another resource library of seminar topics 