You can increase the PR of your web-pages by increasing the number of quality backlinks pointing to your site. Although, you need not be too worried about it.
For improved traffic however:
- Submit your website’s updates to social bookmarking websites
- Participate in niche related forums and communities
- Contribute in social networking sites (Post on related wall pages)
- Submit RSS feeds to feed directories
- Start a catchy blog and invite other bloggers to guest post
- Write guest posts for blogs related to your niche
- Share viral content (images, text, videos etc)
- Offer valuable information and make your website user-friendly (for repeated traffic)
You might also like jumping into PPC if you’re not on a budget. That gets you targeted traffic and instant gratification.