It will be a great if anyone having experiance in creation of google gadget can help me out here. I have a blog - http://ramdev-yoga.blogspot.com. For same i want to create a google gadget which picks feeds of the blog and shows titles of last 4 posts.
You can simply add latest post titles via your rss (if you are talking about iGoogle). Check google documentation (http://www.google.com/webmasters/add.html) how to do it.
what i am looking for is when someone is looking to add item to their iGoogle and for same they are searching gadgets with keywords say Yoga, i wannt my gadget to be displayed there. And that is possible only if i create a gadget for displaying feeds. I need help for coding the same.
The easiest way to do it is to use Google Mashup Editor (see http://editor.googlemashups.com/ and http://code.google.com/support/bin/answer.py?answer=82481&topic=12044). Or you can try to build Google Gadget from scratch (see http://code.google.com/apis/gadgets/docs/remote-content.html#Fetch_JSON)