Relevant post show is necessary for every blog . By which reader have more option to find there content in blog. This is better if wordpress plugin related post with image. Without picture related post not highlighted.I find some better plugins for you
- Related post by zemanta: This plugin is made by zemanata comp. this is best plugin for your blog. here is snapshot of this.
- IGIT related post:This plugin is made by a wordpress freelancer . this is also show relevant post .here is snapshot of this
Contextual Related Posts: this made by ajay and get good response for this plugin, you can install this
- nrelate:You can earn by this plugin ,in this sponcer result also show when user click on that you earn
- Linkwithin:This is also like nrelate ,this is made for both blogger and wordpress